8615616 has 56 divisors (see below), whose sum is σ = 23798784. Its totient is φ = 2745600.

The previous prime is 8615591. The next prime is 8615623. The reversal of 8615616 is 6165168.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3441 + ... + 5391.

Almost surely, 2^8615616 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 8615616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11899392).

8615616 is an abundant number, since it is smaller than the sum of its proper divisors (15183168).

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

8615616 is a wasteful number, since it uses less digits than its factorization.

8615616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1979 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 8615616 is about 2935.2369580666. The cubic root of 8615616 is about 205.0038944333.

The spelling of 8615616 in words is "eight million, six hundred fifteen thousand, six hundred sixteen".