915616 has 48 divisors (see below), whose sum is σ = 2032128. Its totient is φ = 403200.

The previous prime is 915613. The next prime is 915623. The reversal of 915616 is 616519.

915616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (915611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12861 + ... + 12931.

It is an arithmetic number, because the mean of its divisors is an integer number (42336).

2⁹¹⁵⁶¹⁶ 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 915616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016064).

915616 is an abundant number, since it is smaller than the sum of its proper divisors (1116512).

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

915616 is a wasteful number, since it uses less digits than its factorization.

915616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 117 counting only the distinct ones).

The product of its digits is 1620, while the sum is 28.

The square root of 915616 is about 956.8782576692. The cubic root of 915616 is about 97.1041500098.

It can be divided in two parts, 9 and 15616, that added together give a 6-th power (15625 = 5⁶).

The spelling of 915616 in words is "nine hundred fifteen thousand, six hundred sixteen".