214648979 has 4 divisors (see below), whose sum is σ = 214699800. Its totient is φ = 214598160.

The previous prime is 214648969. The next prime is 214648999. The reversal of 214648979 is 979846412.

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

It is a cyclic number.

It is not a de Polignac number, because 214648979 - 2²⁰ = 213600403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214648969) 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 3 ways as a sum of consecutive naturals, for example, 18437 + ... + 27734.

It is an arithmetic number, because the mean of its divisors is an integer number (53674950).

Almost surely, 2^214648979 is an apocalyptic number.

214648979 is a deficient number, since it is larger than the sum of its proper divisors (50821).

214648979 is an equidigital number, since it uses as much as digits as its factorization.

214648979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50820.

The product of its digits is 870912, while the sum is 50.

The square root of 214648979 is about 14650.9036922642. The cubic root of 214648979 is about 598.7464374217.

The spelling of 214648979 in words is "two hundred fourteen million, six hundred forty-eight thousand, nine hundred seventy-nine".