117263646 has 64 divisors (see below), whose sum is σ = 272563200. Its totient is φ = 37322208.

The previous prime is 117263639. The next prime is 117263647. The reversal of 117263646 is 646362711.

It is a happy number.

117263646 is a `hidden beast` number, since 1 + 1 + 7 + 2 + 6 + 3 + 646 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (36288) is a multiple of the sum of its prime divisors (864).

It is a self number, because there is not a number n which added to its sum of digits gives 117263646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117263647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160935 + ... + 161661.

It is an arithmetic number, because the mean of its divisors is an integer number (4258800).

Almost surely, 2^117263646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117263646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136281600).

117263646 is an abundant number, since it is smaller than the sum of its proper divisors (155299554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117263646 is a wasteful number, since it uses less digits than its factorization.

117263646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 864 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 117263646 is about 10828.8340092551. The cubic root of 117263646 is about 489.4644238458.

The spelling of 117263646 in words is "one hundred seventeen million, two hundred sixty-three thousand, six hundred forty-six".