915680 has 48 divisors (see below), whose sum is σ = 2222640. Its totient is φ = 356352.

The previous prime is 915659. The next prime is 915683. The reversal of 915680 is 86519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (915683) 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 7 ways as a sum of consecutive naturals, for example, 9392 + ... + 9488.

It is an arithmetic number, because the mean of its divisors is an integer number (46305).

2⁹¹⁵⁶⁸⁰ 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 915680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1111320).

915680 is an abundant number, since it is smaller than the sum of its proper divisors (1306960).

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

915680 is a wasteful number, since it uses less digits than its factorization.

915680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 915680 is about 956.9116991656. The cubic root of 915680 is about 97.1064124287.

The spelling of 915680 in words is "nine hundred fifteen thousand, six hundred eighty".