872634100 has 36 divisors (see below), whose sum is σ = 2039281804. Its totient is φ = 322202880.

The previous prime is 872634083. The next prime is 872634127. The reversal of 872634100 is 1436278.

It can be written as a sum of positive squares in 6 ways, for example, as 221057424 + 651576676 = 14868^2 + 25526^2 .

It is a super-2 number, since 2×872634100² = 1522980544965620000, which contains 22 as substring.

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, 334329 + ... + 336928.

Almost surely, 2^872634100 is an apocalyptic number.

It is an amenable number.

872634100 is an abundant number, since it is smaller than the sum of its proper divisors (1166647704).

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

872634100 is a wasteful number, since it uses less digits than its factorization.

872634100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671284 (or 671277 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 872634100 is about 29540.3808370847. The cubic root of 872634100 is about 955.6027553654.

The spelling of 872634100 in words is "eight hundred seventy-two million, six hundred thirty-four thousand, one hundred".