7964688 has 20 divisors (see below), whose sum is σ = 20575568. Its totient is φ = 2654880.

The previous prime is 7964683. The next prime is 7964689. The reversal of 7964688 is 8864697.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 165931 = 7964688 / (7 + 9 + 6 + 4 + 6 + 8 + 8).

It is not an unprimeable number, because it can be changed into a prime (7964683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82918 + ... + 83013.

Almost surely, 2^7964688 is an apocalyptic number.

It is an amenable number.

7964688 is an abundant number, since it is smaller than the sum of its proper divisors (12610880).

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

7964688 is a wasteful number, since it uses less digits than its factorization.

7964688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165942 (or 165936 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 7964688 is about 2822.1778824163. The cubic root of 7964688 is about 199.7052993041.

Subtracting 7964688 from its reverse (8864697), we obtain a palindrome (900009).

The spelling of 7964688 in words is "seven million, nine hundred sixty-four thousand, six hundred eighty-eight".