7997404 has 12 divisors (see below), whose sum is σ = 14732200. Its totient is φ = 3788208.

The previous prime is 7997393. The next prime is 7997447. The reversal of 7997404 is 4047997.

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 in 3 ways as a sum of consecutive naturals, for example, 52539 + ... + 52690.

Almost surely, 2^7997404 is an apocalyptic number.

It is an amenable number.

7997404 is a deficient number, since it is larger than the sum of its proper divisors (6734796).

7997404 is a wasteful number, since it uses less digits than its factorization.

7997404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105252 (or 105250 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 7997404 is about 2827.9681752099. The cubic root of 7997404 is about 199.9783643262.

The spelling of 7997404 in words is "seven million, nine hundred ninety-seven thousand, four hundred four".