868813100 has 36 divisors (see below), whose sum is σ = 1920908304. Its totient is φ = 340966080.

The previous prime is 868813087. The next prime is 868813111. The reversal of 868813100 is 1318868.

It is a happy number.

It is a super-2 number, since 2×868813100² = 1509672405463220000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76664 + ... + 87263.

It is an arithmetic number, because the mean of its divisors is an integer number (53358564).

Almost surely, 2^868813100 is an apocalyptic number.

It is an amenable number.

868813100 is an abundant number, since it is smaller than the sum of its proper divisors (1052095204).

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

868813100 is a wasteful number, since it uses less digits than its factorization.

868813100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163994 (or 163987 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 868813100 is about 29475.6357013721. The cubic root of 868813100 is about 954.2059497905.

The spelling of 868813100 in words is "eight hundred sixty-eight million, eight hundred thirteen thousand, one hundred".