422658979 has 4 divisors (see below), whose sum is σ = 422716120. Its totient is φ = 422601840.

The previous prime is 422658959. The next prime is 422658989. The reversal of 422658979 is 979856224.

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 422658979 - 2⁷ = 422658851 is a prime.

It is a super-2 number, since 2×422658979² = 357281225058644882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422658919) 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, 15474 + ... + 32935.

It is an arithmetic number, because the mean of its divisors is an integer number (105679030).

Almost surely, 2^422658979 is an apocalyptic number.

422658979 is a deficient number, since it is larger than the sum of its proper divisors (57141).

422658979 is an equidigital number, since it uses as much as digits as its factorization.

422658979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57140.

The product of its digits is 2177280, while the sum is 52.

The square root of 422658979 is about 20558.6716253750. The cubic root of 422658979 is about 750.4642926653.

The spelling of 422658979 in words is "four hundred twenty-two million, six hundred fifty-eight thousand, nine hundred seventy-nine".