479197979 has 6 divisors (see below), whose sum is σ = 518895036. Its totient is φ = 442336440.

The previous prime is 479197967. The next prime is 479197991. The reversal of 479197979 is 979791974.

It is an interprime number because it is at equal distance from previous prime (479197967) and next prime (479197991).

It is not a de Polignac number, because 479197979 - 2⁸ = 479197723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479197909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1417577 + ... + 1417914.

It is an arithmetic number, because the mean of its divisors is an integer number (86482506).

Almost surely, 2^479197979 is an apocalyptic number.

479197979 is a deficient number, since it is larger than the sum of its proper divisors (39697057).

479197979 is a wasteful number, since it uses less digits than its factorization.

479197979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835517 (or 2835504 counting only the distinct ones).

The product of its digits is 9001692, while the sum is 62.

The square root of 479197979 is about 21890.5911066833. The cubic root of 479197979 is about 782.5372009520.

The spelling of 479197979 in words is "four hundred seventy-nine million, one hundred ninety-seven thousand, nine hundred seventy-nine".