847092138 has 16 divisors (see below), whose sum is σ = 1694527680. Its totient is φ = 282306816.

The previous prime is 847092109. The next prime is 847092161. The reversal of 847092138 is 831290748.

It is a super-2 number, since 2×847092138² = 1435130180522822088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 847092138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26883 + ... + 49161.

It is an arithmetic number, because the mean of its divisors is an integer number (105907980).

Almost surely, 2^847092138 is an apocalyptic number.

847092138 is an abundant number, since it is smaller than the sum of its proper divisors (847435542).

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

847092138 is a wasteful number, since it uses less digits than its factorization.

847092138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28621.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 847092138 is about 29104.8473282373. The cubic root of 847092138 is about 946.1867970352.

The spelling of 847092138 in words is "eight hundred forty-seven million, ninety-two thousand, one hundred thirty-eight".