213995712 has 56 divisors (see below), whose sum is σ = 647086336. Its totient is φ = 61141248.

The previous prime is 213995707. The next prime is 213995713. The reversal of 213995712 is 217599312.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (213995713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78268 + ... + 80955.

Almost surely, 2^213995712 is an apocalyptic number.

It is an amenable number.

213995712 is an abundant number, since it is smaller than the sum of its proper divisors (433090624).

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

213995712 is a wasteful number, since it uses less digits than its factorization.

213995712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159245 (or 159235 counting only the distinct ones).

The product of its digits is 34020, while the sum is 39.

The square root of 213995712 is about 14628.5922767709. The cubic root of 213995712 is about 598.1384078759.

The spelling of 213995712 in words is "two hundred thirteen million, nine hundred ninety-five thousand, seven hundred twelve".