479631915 has 64 divisors (see below), whose sum is σ = 1025817600. Its totient is φ = 207712512.

The previous prime is 479631913. The next prime is 479631967. The reversal of 479631915 is 519136974.

479631915 is a `hidden beast` number, since 4 + 7 + 9 + 631 + 9 + 1 + 5 = 666.

It is not a de Polignac number, because 479631915 - 2¹ = 479631913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (479631913) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4599 + ... + 31311.

It is an arithmetic number, because the mean of its divisors is an integer number (16028400).

Almost surely, 2^479631915 is an apocalyptic number.

479631915 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

479631915 is an abundant number, since it is smaller than the sum of its proper divisors (546185685).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

479631915 is a wasteful number, since it uses less digits than its factorization.

479631915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26753 (or 26747 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 479631915 is about 21900.5003367503. The cubic root of 479631915 is about 782.7733376012.

The spelling of 479631915 in words is "four hundred seventy-nine million, six hundred thirty-one thousand, nine hundred fifteen".