479307779 has 8 divisors (see below), whose sum is σ = 492203520. Its totient is φ = 466554816.

The previous prime is 479307757. The next prime is 479307791. The reversal of 479307779 is 977703974.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479307779 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 479307779.

It is not an unprimeable number, because it can be changed into a prime (479300779) 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, 28874 + ... + 42335.

It is an arithmetic number, because the mean of its divisors is an integer number (61525440).

Almost surely, 2^479307779 is an apocalyptic number.

479307779 is a deficient number, since it is larger than the sum of its proper divisors (12895741).

479307779 is a wasteful number, since it uses less digits than its factorization.

479307779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71389.

The product of its (nonzero) digits is 2333772, while the sum is 53.

The square root of 479307779 is about 21893.0988898328. The cubic root of 479307779 is about 782.5969647147.

The spelling of 479307779 in words is "four hundred seventy-nine million, three hundred seven thousand, seven hundred seventy-nine".