213626889 has 28 divisors (see below), whose sum is σ = 366058816. Its totient is φ = 122069592.

The previous prime is 213626873. The next prime is 213626909. The reversal of 213626889 is 988626312.

213626889 is a `hidden beast` number, since 2 + 13 + 626 + 8 + 8 + 9 = 666.

It is not a de Polignac number, because 213626889 - 2⁴ = 213626873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213626849) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 15829 + ... + 26034.

Almost surely, 2^213626889 is an apocalyptic number.

It is an amenable number.

213626889 is a deficient number, since it is larger than the sum of its proper divisors (152431927).

213626889 is an frugal number, since it uses more digits than its factorization.

213626889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41888 (or 41873 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 213626889 is about 14615.9806034354. The cubic root of 213626889 is about 597.7945784587.

The spelling of 213626889 in words is "two hundred thirteen million, six hundred twenty-six thousand, eight hundred eighty-nine".