479881681 has 16 divisors (see below), whose sum is σ = 495331200. Its totient is φ = 464768128.

The previous prime is 479881673. The next prime is 479881709. The reversal of 479881681 is 186188974.

It is a happy number.

It is not a de Polignac number, because 479881681 - 2³ = 479881673 is a prime.

It is a super-2 number, since 2×479881681² = 460572855518771522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479881621) 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, 1233435 + ... + 1233823.

It is an arithmetic number, because the mean of its divisors is an integer number (30958200).

Almost surely, 2^479881681 is an apocalyptic number.

It is an amenable number.

479881681 is a deficient number, since it is larger than the sum of its proper divisors (15449519).

479881681 is a wasteful number, since it uses less digits than its factorization.

479881681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728.

The product of its digits is 774144, while the sum is 52.

The square root of 479881681 is about 21906.2018843979. The cubic root of 479881681 is about 782.9091891658.

The spelling of 479881681 in words is "four hundred seventy-nine million, eight hundred eighty-one thousand, six hundred eighty-one".