213870884 has 12 divisors (see below), whose sum is σ = 374432604. Its totient is φ = 106890144.

The previous prime is 213870857. The next prime is 213870887. The reversal of 213870884 is 488078312.

It can be written as a sum of positive squares in 2 ways, for example, as 32376100 + 181494784 = 5690^2 + 13472^2 .

It is not an unprimeable number, because it can be changed into a prime (213870887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722 + ... + 20694.

It is an arithmetic number, because the mean of its divisors is an integer number (31202717).

Almost surely, 2^213870884 is an apocalyptic number.

It is an amenable number.

213870884 is a deficient number, since it is larger than the sum of its proper divisors (160561720).

213870884 is a wasteful number, since it uses less digits than its factorization.

213870884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22654 (or 22652 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 213870884 is about 14624.3250784438. The cubic root of 213870884 is about 598.0220832029.

The spelling of 213870884 in words is "two hundred thirteen million, eight hundred seventy thousand, eight hundred eighty-four".