7870664 has 16 divisors (see below), whose sum is σ = 14791920. Its totient is φ = 3926160.

The previous prime is 7870661. The next prime is 7870679. The reversal of 7870664 is 4660787.

It is not an unprimeable number, because it can be changed into a prime (7870661) 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, 3707 + ... + 5429.

It is an arithmetic number, because the mean of its divisors is an integer number (924495).

Almost surely, 2^7870664 is an apocalyptic number.

It is an amenable number.

7870664 is a deficient number, since it is larger than the sum of its proper divisors (6921256).

7870664 is a wasteful number, since it uses less digits than its factorization.

7870664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300 (or 2296 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 7870664 is about 2805.4703705439. The cubic root of 7870664 is about 198.9163389989.

The spelling of 7870664 in words is "seven million, eight hundred seventy thousand, six hundred sixty-four".