7904838 has 16 divisors (see below), whose sum is σ = 15964416. Its totient is φ = 2609160.

The previous prime is 7904773. The next prime is 7904843. The reversal of 7904838 is 8384097.

It is a junction number, because it is equal to n+sod(n) for n = 7904796 and 7904805.

It is a congruent number.

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, 5778 + ... + 7013.

It is an arithmetic number, because the mean of its divisors is an integer number (997776).

Almost surely, 2^7904838 is an apocalyptic number.

7904838 is an abundant number, since it is smaller than the sum of its proper divisors (8059578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7904838 is a wasteful number, since it uses less digits than its factorization.

7904838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12899.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 7904838 is about 2811.5543743630. The cubic root of 7904838 is about 199.2038180104.

The spelling of 7904838 in words is "seven million, nine hundred four thousand, eight hundred thirty-eight".