212766983 has 16 divisors (see below), whose sum is σ = 256726176. Its totient is φ = 173715840.

The previous prime is 212766977. The next prime is 212767001. The reversal of 212766983 is 389667212.

It is a cyclic number.

It is not a de Polignac number, because 212766983 - 2⁸ = 212766727 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 (212766923) 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 15 ways as a sum of consecutive naturals, for example, 14816 + ... + 25397.

It is an arithmetic number, because the mean of its divisors is an integer number (16045386).

Almost surely, 2^212766983 is an apocalyptic number.

212766983 is a deficient number, since it is larger than the sum of its proper divisors (43959193).

212766983 is a wasteful number, since it uses less digits than its factorization.

212766983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40274.

The product of its digits is 217728, while the sum is 44.

The square root of 212766983 is about 14586.5343039394. The cubic root of 212766983 is about 596.9914048819.

The spelling of 212766983 in words is "two hundred twelve million, seven hundred sixty-six thousand, nine hundred eighty-three".