7974864 has 30 divisors (see below), whose sum is σ = 22318946. Its totient is φ = 2658240.

The previous prime is 7974833. The next prime is 7974893. The reversal of 7974864 is 4684797.

It can be written as a sum of positive squares in only one way, i.e., 7884864 + 90000 = 2808^2 + 300^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27547 + ... + 27834.

Almost surely, 2^7974864 is an apocalyptic number.

It is an amenable number.

7974864 is an abundant number, since it is smaller than the sum of its proper divisors (14344082).

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

7974864 is a wasteful number, since it uses less digits than its factorization.

7974864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55395 (or 55386 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 7974864 is about 2823.9801699020. The cubic root of 7974864 is about 199.7903135682.

The spelling of 7974864 in words is "seven million, nine hundred seventy-four thousand, eight hundred sixty-four".