839813074 has 8 divisors (see below), whose sum is σ = 1265221260. Its totient is φ = 418072656.

The previous prime is 839813017. The next prime is 839813077. The reversal of 839813074 is 470318938.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 826160049 + 13653025 = 28743^2 + 3695^2 .

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

It is a super-2 number, since 2×839813074² = 1410571998522658952, 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 839813074.

It is not an unprimeable number, because it can be changed into a prime (839813077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916369 + ... + 917284.

Almost surely, 2^839813074 is an apocalyptic number.

839813074 is a deficient number, since it is larger than the sum of its proper divisors (425408186).

839813074 is a wasteful number, since it uses less digits than its factorization.

839813074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833884.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 839813074 is about 28979.5285330869. The cubic root of 839813074 is about 943.4688020088.

The spelling of 839813074 in words is "eight hundred thirty-nine million, eight hundred thirteen thousand, seventy-four".