213689072 has 20 divisors (see below), whose sum is σ = 422833056. Its totient is φ = 104570880.

The previous prime is 213689071. The next prime is 213689083. The reversal of 213689072 is 270986312.

213689072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213689071) 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, 141329 + ... + 142832.

Almost surely, 2^213689072 is an apocalyptic number.

It is an amenable number.

213689072 is a deficient number, since it is larger than the sum of its proper divisors (209143984).

213689072 is a wasteful number, since it uses less digits than its factorization.

213689072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284216 (or 284210 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 213689072 is about 14618.1076750720. The cubic root of 213689072 is about 597.8525752996.

The spelling of 213689072 in words is "two hundred thirteen million, six hundred eighty-nine thousand, seventy-two".