117643570 has 64 divisors (see below), whose sum is σ = 249422976. Its totient is φ = 39470080.

The previous prime is 117643541. The next prime is 117643577. The reversal of 117643570 is 75346711.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (117643577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98517 + ... + 99703.

It is an arithmetic number, because the mean of its divisors is an integer number (3897234).

Almost surely, 2^117643570 is an apocalyptic number.

117643570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117643570 is an abundant number, since it is smaller than the sum of its proper divisors (131779406).

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

117643570 is a wasteful number, since it uses less digits than its factorization.

117643570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 117643570 is about 10846.3620629223. The cubic root of 117643570 is about 489.9924613584.

The spelling of 117643570 in words is "one hundred seventeen million, six hundred forty-three thousand, five hundred seventy".