7664490 has 32 divisors (see below), whose sum is σ = 20439360. Its totient is φ = 2043792.

The previous prime is 7664483. The next prime is 7664507. The reversal of 7664490 is 944667.

7664490 is a `hidden beast` number, since 7 + 6 + 644 + 9 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13924 + ... + 14463.

It is an arithmetic number, because the mean of its divisors is an integer number (638730).

Almost surely, 2^7664490 is an apocalyptic number.

7664490 is an abundant number, since it is smaller than the sum of its proper divisors (12774870).

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

7664490 is a wasteful number, since it uses less digits than its factorization.

7664490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28403 (or 28397 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 7664490 is about 2768.4815332597. The cubic root of 7664490 is about 197.1640606414.

The spelling of 7664490 in words is "seven million, six hundred sixty-four thousand, four hundred ninety".