213287884 has 12 divisors (see below), whose sum is σ = 373370200. Its totient is φ = 106610688.

The previous prime is 213287849. The next prime is 213287897. The reversal of 213287884 is 488782312.

213287884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213287884² = 90983442922394912, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 213287884.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11212 + ... + 23500.

Almost surely, 2^213287884 is an apocalyptic number.

It is an amenable number.

213287884 is a deficient number, since it is larger than the sum of its proper divisors (160082316).

213287884 is a wasteful number, since it uses less digits than its factorization.

213287884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16632 (or 16630 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 213287884 is about 14604.3789323613. The cubic root of 213287884 is about 597.4781971818.

The spelling of 213287884 in words is "two hundred thirteen million, two hundred eighty-seven thousand, eight hundred eighty-four".