7930638 has 24 divisors (see below), whose sum is σ = 18088200. Its totient is φ = 2504304.

The previous prime is 7930597. The next prime is 7930649. The reversal of 7930638 is 8360397.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11253 + ... + 11936.

It is an arithmetic number, because the mean of its divisors is an integer number (753675).

Almost surely, 2^7930638 is an apocalyptic number.

7930638 is an abundant number, since it is smaller than the sum of its proper divisors (10157562).

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

7930638 is a wasteful number, since it uses less digits than its factorization.

7930638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23216 (or 23213 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 7930638 is about 2816.1388460088. The cubic root of 7930638 is about 199.4203047236.

The spelling of 7930638 in words is "seven million, nine hundred thirty thousand, six hundred thirty-eight".