213695568 has 30 divisors (see below), whose sum is σ = 598051194. Its totient is φ = 71231808.

The previous prime is 213695557. The next prime is 213695569. The reversal of 213695568 is 865596312.

213695568 is a `hidden beast` number, since 21 + 3 + 69 + 5 + 568 = 666.

213695568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 212226624 + 1468944 = 14568^2 + 1212^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213695569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 741855 + ... + 742142.

Almost surely, 2^213695568 is an apocalyptic number.

It is an amenable number.

213695568 is an abundant number, since it is smaller than the sum of its proper divisors (384355626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213695568 is a wasteful number, since it uses less digits than its factorization.

213695568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484011 (or 1484002 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 213695568 is about 14618.3298635651. The cubic root of 213695568 is about 597.8586333398.

The spelling of 213695568 in words is "two hundred thirteen million, six hundred ninety-five thousand, five hundred sixty-eight".