212876712 has 24 divisors (see below), whose sum is σ = 576541290. Its totient is φ = 70958880.

The previous prime is 212876711. The next prime is 212876759. The reversal of 212876712 is 217678212.

It can be written as a sum of positive squares in only one way, i.e., 212751396 + 125316 = 14586^2 + 354^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (212876711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1478239 + ... + 1478382.

Almost surely, 2^212876712 is an apocalyptic number.

It is an amenable number.

212876712 is an abundant number, since it is smaller than the sum of its proper divisors (363664578).

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

212876712 is a wasteful number, since it uses less digits than its factorization.

212876712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956633 (or 2956626 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 212876712 is about 14590.2951306682. The cubic root of 212876712 is about 597.0940148059.

The spelling of 212876712 in words is "two hundred twelve million, eight hundred seventy-six thousand, seven hundred twelve".