213989712 has 40 divisors (see below), whose sum is σ = 553402080. Its totient is φ = 71253120.

The previous prime is 213989707. The next prime is 213989717. The reversal of 213989712 is 217989312.

It is an interprime number because it is at equal distance from previous prime (213989707) and next prime (213989717).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213989717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58662 + ... + 62202.

It is an arithmetic number, because the mean of its divisors is an integer number (13835052).

Almost surely, 2^213989712 is an apocalyptic number.

It is an amenable number.

213989712 is an abundant number, since it is smaller than the sum of its proper divisors (339412368).

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

213989712 is a wasteful number, since it uses less digits than its factorization.

213989712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811 (or 4805 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 213989712 is about 14628.3871975006. The cubic root of 213989712 is about 598.1328176331.

The spelling of 213989712 in words is "two hundred thirteen million, nine hundred eighty-nine thousand, seven hundred twelve".