813147938 has 8 divisors (see below), whose sum is σ = 1219914432. Its totient is φ = 406509796.

The previous prime is 813147919. The next prime is 813147943. The reversal of 813147938 is 839741318.

813147938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×813147938² = 1322419138147303688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14270 + ... + 42777.

It is an arithmetic number, because the mean of its divisors is an integer number (152489304).

Almost surely, 2^813147938 is an apocalyptic number.

813147938 is a deficient number, since it is larger than the sum of its proper divisors (406766494).

813147938 is a wasteful number, since it uses less digits than its factorization.

813147938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64176.

The product of its digits is 145152, while the sum is 44.

The square root of 813147938 is about 28515.7489468539. The cubic root of 813147938 is about 933.3757679970.

The spelling of 813147938 in words is "eight hundred thirteen million, one hundred forty-seven thousand, nine hundred thirty-eight".