479491687 has 4 divisors (see below), whose sum is σ = 479593080. Its totient is φ = 479390296.

The previous prime is 479491673. The next prime is 479491699. The reversal of 479491687 is 786194974.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 479491687 - 2¹¹ = 479489639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479491487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43237 + ... + 53182.

It is an arithmetic number, because the mean of its divisors is an integer number (119898270).

Almost surely, 2^479491687 is an apocalyptic number.

479491687 is a deficient number, since it is larger than the sum of its proper divisors (101393).

479491687 is an equidigital number, since it uses as much as digits as its factorization.

479491687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101392.

The product of its digits is 3048192, while the sum is 55.

The square root of 479491687 is about 21897.2986233462. The cubic root of 479491687 is about 782.6970447641.

The spelling of 479491687 in words is "four hundred seventy-nine million, four hundred ninety-one thousand, six hundred eighty-seven".