479775891 has 24 divisors (see below), whose sum is σ = 749408512. Its totient is φ = 267451200.

The previous prime is 479775823. The next prime is 479775893. The reversal of 479775891 is 198577974.

It is not a de Polignac number, because 479775891 - 2¹¹ = 479773843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479775893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28506 + ... + 42096.

Almost surely, 2^479775891 is an apocalyptic number.

479775891 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

479775891 is a deficient number, since it is larger than the sum of its proper divisors (269632621).

479775891 is a wasteful number, since it uses less digits than its factorization.

479775891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13683 (or 13642 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 57.

The square root of 479775891 is about 21903.7871383010. The cubic root of 479775891 is about 782.8516541155.

The spelling of 479775891 in words is "four hundred seventy-nine million, seven hundred seventy-five thousand, eight hundred ninety-one".