479138557 has 8 divisors (see below), whose sum is σ = 507517056. Its totient is φ = 450781632.

The previous prime is 479138521. The next prime is 479138623. The reversal of 479138557 is 755831974.

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 not a de Polignac number, because 479138557 - 2²³ = 470749949 is a prime.

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 479138557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479130557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73068 + ... + 79354.

It is an arithmetic number, because the mean of its divisors is an integer number (63439632).

Almost surely, 2^479138557 is an apocalyptic number.

It is an amenable number.

479138557 is a deficient number, since it is larger than the sum of its proper divisors (28378499).

479138557 is a wasteful number, since it uses less digits than its factorization.

479138557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10787.

The product of its digits is 1058400, while the sum is 49.

The square root of 479138557 is about 21889.2338148232. The cubic root of 479138557 is about 782.5048539543.

The spelling of 479138557 in words is "four hundred seventy-nine million, one hundred thirty-eight thousand, five hundred fifty-seven".