7913938 has 8 divisors (see below), whose sum is σ = 11896560. Its totient is φ = 3948420.

The previous prime is 7913923. The next prime is 7913947. The reversal of 7913938 is 8393197.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7913938.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3048 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (1487070).

Almost surely, 2^7913938 is an apocalyptic number.

7913938 is a deficient number, since it is larger than the sum of its proper divisors (3982622).

7913938 is a wasteful number, since it uses less digits than its factorization.

7913938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8552.

The product of its digits is 40824, while the sum is 40.

The square root of 7913938 is about 2813.1722307744. The cubic root of 7913938 is about 199.2802294257.

The spelling of 7913938 in words is "seven million, nine hundred thirteen thousand, nine hundred thirty-eight".