8724664 has 16 divisors (see below), whose sum is σ = 17617320. Its totient is φ = 4026720.

The previous prime is 8724649. The next prime is 8724697. The reversal of 8724664 is 4664278.

It is a super-2 number, since 2×8724664² = 152239523825792, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41842 + ... + 42049.

Almost surely, 2^8724664 is an apocalyptic number.

It is an amenable number.

8724664 is an abundant number, since it is smaller than the sum of its proper divisors (8892656).

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

8724664 is a wasteful number, since it uses less digits than its factorization.

8724664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83910 (or 83906 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 8724664 is about 2953.7542213258. The cubic root of 8724664 is about 205.8651834133.

The spelling of 8724664 in words is "eight million, seven hundred twenty-four thousand, six hundred sixty-four".