7899994 has 16 divisors (see below), whose sum is σ = 12431232. Its totient is φ = 3758128.

The previous prime is 7899989. The next prime is 7900001. The reversal of 7899994 is 4999987.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11772 + ... + 12424.

It is an arithmetic number, because the mean of its divisors is an integer number (776952).

Almost surely, 2^7899994 is an apocalyptic number.

7899994 is a deficient number, since it is larger than the sum of its proper divisors (4531238).

7899994 is a wasteful number, since it uses less digits than its factorization.

7899994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941.

The product of its digits is 1469664, while the sum is 55.

The square root of 7899994 is about 2810.6927971587. The cubic root of 7899994 is about 199.1631197079.

The spelling of 7899994 in words is "seven million, eight hundred ninety-nine thousand, nine hundred ninety-four".