212348979 has 8 divisors (see below), whose sum is σ = 314591120. Its totient is φ = 141565968.

The previous prime is 212348971. The next prime is 212349013. The reversal of 212348979 is 979843212.

212348979 is a `hidden beast` number, since 212 + 348 + 97 + 9 = 666.

It is not a de Polignac number, because 212348979 - 2³ = 212348971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212348971) 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, 3932362 + ... + 3932415.

It is an arithmetic number, because the mean of its divisors is an integer number (39323890).

Almost surely, 2^212348979 is an apocalyptic number.

212348979 is a deficient number, since it is larger than the sum of its proper divisors (102242141).

212348979 is an equidigital number, since it uses as much as digits as its factorization.

212348979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7864786 (or 7864780 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 212348979 is about 14572.1988388850. The cubic root of 212348979 is about 596.6001969517.

The spelling of 212348979 in words is "two hundred twelve million, three hundred forty-eight thousand, nine hundred seventy-nine".