808636031 has 4 divisors (see below), whose sum is σ = 924155472. Its totient is φ = 693116592.

The previous prime is 808636013. The next prime is 808636033. The reversal of 808636031 is 130636808.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 808636031 - 2⁶ = 808635967 is a prime.

It is a super-2 number, since 2×808636031² = 1307784461262865922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 808635982 and 808636000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808636033) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 57759710 + ... + 57759723.

It is an arithmetic number, because the mean of its divisors is an integer number (231038868).

Almost surely, 2^808636031 is an apocalyptic number.

808636031 is a deficient number, since it is larger than the sum of its proper divisors (115519441).

808636031 is a wasteful number, since it uses less digits than its factorization.

808636031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115519440.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 808636031 is about 28436.5263525628. The cubic root of 808636031 is about 931.6462271018.

The spelling of 808636031 in words is "eight hundred eight million, six hundred thirty-six thousand, thirty-one".