213387900 has 72 divisors (see below), whose sum is σ = 673540224. Its totient is φ = 51729600.

The previous prime is 213387877. The next prime is 213387929. The reversal of 213387900 is 9783312.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 29032 + ... + 35631.

Almost surely, 2^213387900 is an apocalyptic number.

213387900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213387900 is an abundant number, since it is smaller than the sum of its proper divisors (460152324).

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

213387900 is a wasteful number, since it uses less digits than its factorization.

213387900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64691 (or 64684 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 213387900 is about 14607.8027095111. The cubic root of 213387900 is about 597.5715733895.

The spelling of 213387900 in words is "two hundred thirteen million, three hundred eighty-seven thousand, nine hundred".