7664564 has 24 divisors (see below), whose sum is σ = 13993728. Its totient is φ = 3669120.

The previous prime is 7664563. The next prime is 7664597. The reversal of 7664564 is 4654667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7664561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13739 + ... + 14285.

It is an arithmetic number, because the mean of its divisors is an integer number (583072).

Almost surely, 2^7664564 is an apocalyptic number.

It is an amenable number.

7664564 is a deficient number, since it is larger than the sum of its proper divisors (6329164).

7664564 is a wasteful number, since it uses less digits than its factorization.

7664564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 693 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 7664564 is about 2768.4948979545. The cubic root of 7664564 is about 197.1646951734.

It can be divided in two parts, 7664 and 564, that added together give a palindrome (8228).

The spelling of 7664564 in words is "seven million, six hundred sixty-four thousand, five hundred sixty-four".