875631690 has 24 divisors (see below), whose sum is σ = 2276642628. Its totient is φ = 233501760.

The previous prime is 875631683. The next prime is 875631719. The reversal of 875631690 is 96136578.

It is a happy number.

875631690 is a `hidden beast` number, since 8 + 7 + 5 + 631 + 6 + 9 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 830995929 + 44635761 = 28827^2 + 6681^2 .

It is a super-2 number, since 2×875631690² = 1533461713064512200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4864531 + ... + 4864710.

Almost surely, 2^875631690 is an apocalyptic number.

875631690 is an abundant number, since it is smaller than the sum of its proper divisors (1401010938).

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

875631690 is a wasteful number, since it uses less digits than its factorization.

875631690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9729254 (or 9729251 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 875631690 is about 29591.0744989093. The cubic root of 875631690 is about 956.6957035436.

It can be divided in two parts, 87563 and 1690, that added together give a triangular number (89253 = T₄₂₂).

The spelling of 875631690 in words is "eight hundred seventy-five million, six hundred thirty-one thousand, six hundred ninety".