212713679 has 4 divisors (see below), whose sum is σ = 213667776. Its totient is φ = 211759584.

The previous prime is 212713667. The next prime is 212713691. The reversal of 212713679 is 976317212.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (212713667) and next prime (212713691).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212713679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212713079) 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, 476714 + ... + 477159.

It is an arithmetic number, because the mean of its divisors is an integer number (53416944).

Almost surely, 2^212713679 is an apocalyptic number.

212713679 is a deficient number, since it is larger than the sum of its proper divisors (954097).

212713679 is an equidigital number, since it uses as much as digits as its factorization.

212713679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954096.

The product of its digits is 31752, while the sum is 38.

The square root of 212713679 is about 14584.7070248257. The cubic root of 212713679 is about 596.9415464449.

The spelling of 212713679 in words is "two hundred twelve million, seven hundred thirteen thousand, six hundred seventy-nine".