213081884 has 24 divisors (see below), whose sum is σ = 394195200. Its totient is φ = 100502640.

The previous prime is 213081877. The next prime is 213081901. The reversal of 213081884 is 488180312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12299 + ... + 24029.

It is an arithmetic number, because the mean of its divisors is an integer number (16424800).

Almost surely, 2^213081884 is an apocalyptic number.

It is an amenable number.

213081884 is a deficient number, since it is larger than the sum of its proper divisors (181113316).

213081884 is a wasteful number, since it uses less digits than its factorization.

213081884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11993 (or 11991 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 213081884 is about 14597.3245493823. The cubic root of 213081884 is about 597.2857809467.

The spelling of 213081884 in words is "two hundred thirteen million, eighty-one thousand, eight hundred eighty-four".