479728957 has 8 divisors (see below), whose sum is σ = 489422520. Its totient is φ = 470131200.

The previous prime is 479728913. The next prime is 479728979. The reversal of 479728957 is 759827974.

It can be written as a sum of positive squares in 4 ways, for example, as 8231161 + 471497796 = 2869^2 + 21714^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 479728957 - 2¹¹ = 479726909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479728757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13794 + ... + 33907.

It is an arithmetic number, because the mean of its divisors is an integer number (61177815).

Almost surely, 2^479728957 is an apocalyptic number.

It is an amenable number.

479728957 is a deficient number, since it is larger than the sum of its proper divisors (9693563).

479728957 is a wasteful number, since it uses less digits than its factorization.

479728957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47903.

The product of its digits is 8890560, while the sum is 58.

The square root of 479728957 is about 21902.7157448568. The cubic root of 479728957 is about 782.8261258370.

The spelling of 479728957 in words is "four hundred seventy-nine million, seven hundred twenty-eight thousand, nine hundred fifty-seven".