100872900 has 216 divisors, whose sum is σ = 353414880. Its totient is φ = 23915520.

The previous prime is 100872829. The next prime is 100872907. The reversal of 100872900 is 9278001.

It is not an unprimeable number, because it can be changed into a prime (100872907) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 290527 + ... + 290873.

It is an arithmetic number, because the mean of its divisors is an integer number (1636180).

Almost surely, 2^100872900 is an apocalyptic number.

100872900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100872900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176707440).

100872900 is an abundant number, since it is smaller than the sum of its proper divisors (252541980).

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

100872900 is a wasteful number, since it uses less digits than its factorization.

100872900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 100872900 is about 10043.5501691384. The cubic root of 100872900 is about 465.5055202952.

The spelling of 100872900 in words is "one hundred million, eight hundred seventy-two thousand, nine hundred".