479961861 has 32 divisors (see below), whose sum is σ = 696453120. Its totient is φ = 293092800.

The previous prime is 479961851. The next prime is 479961877. The reversal of 479961861 is 168169974.

It is a happy number.

It is not a de Polignac number, because 479961861 - 2⁷ = 479961733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479961851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261216 + ... + 263046.

It is an arithmetic number, because the mean of its divisors is an integer number (21764160).

Almost surely, 2^479961861 is an apocalyptic number.

It is an amenable number.

479961861 is a deficient number, since it is larger than the sum of its proper divisors (216491259).

479961861 is a wasteful number, since it uses less digits than its factorization.

479961861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017.

The product of its digits is 653184, while the sum is 51.

The square root of 479961861 is about 21908.0318833071. The cubic root of 479961861 is about 782.9527903044.

The spelling of 479961861 in words is "four hundred seventy-nine million, nine hundred sixty-one thousand, eight hundred sixty-one".