7997616 has 180 divisors, whose sum is σ = 27013896. Its totient is φ = 2280960.

The previous prime is 7997581. The next prime is 7997621. The reversal of 7997616 is 6167997.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 470440 + ... + 470456.

Almost surely, 2^7997616 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 7997616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13506948).

7997616 is an abundant number, since it is smaller than the sum of its proper divisors (19016280).

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

7997616 is a wasteful number, since it uses less digits than its factorization.

7997616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 33 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 7997616 is about 2828.0056577030. The cubic root of 7997616 is about 199.9801313596.

The spelling of 7997616 in words is "seven million, nine hundred ninety-seven thousand, six hundred sixteen".