479037891 has 16 divisors (see below), whose sum is σ = 654964128. Its totient is φ = 311251200.

The previous prime is 479037877. The next prime is 479037907. The reversal of 479037891 is 198730974.

It is not a de Polignac number, because 479037891 - 2⁷ = 479037763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 479037891.

It is not an unprimeable number, because it can be changed into a prime (479037821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213025 + ... + 215261.

It is an arithmetic number, because the mean of its divisors is an integer number (40935258).

Almost surely, 2^479037891 is an apocalyptic number.

479037891 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

479037891 is a deficient number, since it is larger than the sum of its proper divisors (175926237).

479037891 is a wasteful number, since it uses less digits than its factorization.

479037891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 479037891 is about 21886.9342531109. The cubic root of 479037891 is about 782.4500492430.

The spelling of 479037891 in words is "four hundred seventy-nine million, thirty-seven thousand, eight hundred ninety-one".