117645276 has 72 divisors (see below), whose sum is σ = 333244800. Its totient is φ = 32147808.

The previous prime is 117645263. The next prime is 117645289. The reversal of 117645276 is 672546711.

It is an interprime number because it is at equal distance from previous prime (117645263) and next prime (117645289).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9175 + ... + 17873.

It is an arithmetic number, because the mean of its divisors is an integer number (4628400).

Almost surely, 2^117645276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117645276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166622400).

117645276 is an abundant number, since it is smaller than the sum of its proper divisors (215599524).

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

117645276 is a wasteful number, since it uses less digits than its factorization.

117645276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8743 (or 8734 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 117645276 is about 10846.4407065175. The cubic root of 117645276 is about 489.9948298774.

The spelling of 117645276 in words is "one hundred seventeen million, six hundred forty-five thousand, two hundred seventy-six".