479513809 has 8 divisors (see below), whose sum is σ = 482067872. Its totient is φ = 476966880.

The previous prime is 479513803. The next prime is 479513831. The reversal of 479513809 is 908315974.

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 479513809 - 2⁹ = 479513297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479513803) 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, 177382 + ... + 180064.

It is an arithmetic number, because the mean of its divisors is an integer number (60258484).

Almost surely, 2^479513809 is an apocalyptic number.

It is an amenable number.

479513809 is a deficient number, since it is larger than the sum of its proper divisors (2554063).

479513809 is a wasteful number, since it uses less digits than its factorization.

479513809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3567.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 479513809 is about 21897.8037483214. The cubic root of 479513809 is about 782.7090815093.

The spelling of 479513809 in words is "four hundred seventy-nine million, five hundred thirteen thousand, eight hundred nine".