479691 has 6 divisors (see below), whose sum is σ = 692900. Its totient is φ = 319788.

The previous prime is 479639. The next prime is 479701. The reversal of 479691 is 196974.

It is a de Polignac number, because none of the positive numbers 2^k-479691 is a prime.

It is an Ulam number.

It is a Duffinian number.

479691 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 479691.

It is not an unprimeable number, because it can be changed into a prime (479191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26641 + ... + 26658.

2⁴⁷⁹⁶⁹¹ is an apocalyptic number.

479691 is a deficient number, since it is larger than the sum of its proper divisors (213209).

479691 is a wasteful number, since it uses less digits than its factorization.

479691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53305 (or 53302 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 479691 is about 692.5972855852. The cubic root of 479691 is about 78.2805479098.

The spelling of 479691 in words is "four hundred seventy-nine thousand, six hundred ninety-one".