7968915 has 16 divisors (see below), whose sum is σ = 14167200. Its totient is φ = 4250016.

The previous prime is 7968911. The next prime is 7968941. The reversal of 7968915 is 5198697.

It is not a de Polignac number, because 7968915 - 2² = 7968911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (7968911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29380 + ... + 29649.

It is an arithmetic number, because the mean of its divisors is an integer number (885450).

Almost surely, 2^7968915 is an apocalyptic number.

7968915 is a deficient number, since it is larger than the sum of its proper divisors (6198285).

7968915 is a wasteful number, since it uses less digits than its factorization.

7968915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59043 (or 59037 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 7968915 is about 2822.9266727990. The cubic root of 7968915 is about 199.7406220943.

The spelling of 7968915 in words is "seven million, nine hundred sixty-eight thousand, nine hundred fifteen".