811952838 has 24 divisors (see below), whose sum is σ = 1760628168. Its totient is φ = 270436032.

The previous prime is 811952747. The next prime is 811952849. The reversal of 811952838 is 838259118.

It is a happy number.

811952838 is a `hidden beast` number, since 8 + 119 + 528 + 3 + 8 = 666.

It is a super-2 number, since 2×811952838² = 1318534822272508488, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 811952793 and 811952802.

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, 6270 + ... + 40782.

It is an arithmetic number, because the mean of its divisors is an integer number (73359507).

Almost surely, 2^811952838 is an apocalyptic number.

811952838 is an abundant number, since it is smaller than the sum of its proper divisors (948675330).

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

811952838 is a wasteful number, since it uses less digits than its factorization.

811952838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35828 (or 35825 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 811952838 is about 28494.7861546635. The cubic root of 811952838 is about 932.9182767030.

The spelling of 811952838 in words is "eight hundred eleven million, nine hundred fifty-two thousand, eight hundred thirty-eight".