479772861 has 16 divisors (see below), whose sum is σ = 679198464. Its totient is φ = 300201984.

The previous prime is 479772829. The next prime is 479772877. The reversal of 479772861 is 168277974.

It is not a de Polignac number, because 479772861 - 2⁵ = 479772829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479770861) 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, 5901 + ... + 31533.

It is an arithmetic number, because the mean of its divisors is an integer number (42449904).

Almost surely, 2^479772861 is an apocalyptic number.

It is an amenable number.

479772861 is a deficient number, since it is larger than the sum of its proper divisors (199425603).

479772861 is a wasteful number, since it uses less digits than its factorization.

479772861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26020.

The product of its digits is 1185408, while the sum is 51.

The square root of 479772861 is about 21903.7179720704. The cubic root of 479772861 is about 782.8500060922.

The spelling of 479772861 in words is "four hundred seventy-nine million, seven hundred seventy-two thousand, eight hundred sixty-one".