7990804 has 6 divisors (see below), whose sum is σ = 13983914. Its totient is φ = 3995400.

The previous prime is 7990789. The next prime is 7990813. The reversal of 7990804 is 4080997.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5107600 + 2883204 = 2260^2 + 1698^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998847 + ... + 998854.

Almost surely, 2^7990804 is an apocalyptic number.

It is an amenable number.

7990804 is a deficient number, since it is larger than the sum of its proper divisors (5993110).

7990804 is a wasteful number, since it uses less digits than its factorization.

7990804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997705 (or 1997703 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 7990804 is about 2826.8010188197. The cubic root of 7990804 is about 199.9233372846.

The spelling of 7990804 in words is "seven million, nine hundred ninety thousand, eight hundred four".