7942904 has 8 divisors (see below), whose sum is σ = 14892960. Its totient is φ = 3971448.

The previous prime is 7942903. The next prime is 7942919. The reversal of 7942904 is 4092497.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7942903) by changing a digit.

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, 496424 + ... + 496439.

It is an arithmetic number, because the mean of its divisors is an integer number (1861620).

Almost surely, 2^7942904 is an apocalyptic number.

It is an amenable number.

7942904 is a deficient number, since it is larger than the sum of its proper divisors (6950056).

7942904 is a wasteful number, since it uses less digits than its factorization.

7942904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992869 (or 992865 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 7942904 is about 2818.3158091314. The cubic root of 7942904 is about 199.5230635622.

The spelling of 7942904 in words is "seven million, nine hundred forty-two thousand, nine hundred four".