479864021 has 8 divisors (see below), whose sum is σ = 590601984. Its totient is φ = 379672560.

The previous prime is 479863999. The next prime is 479864027. The reversal of 479864021 is 120468974.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 479864021 - 2¹⁸ = 479601877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 479864021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479864027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2636525 + ... + 2636706.

It is an arithmetic number, because the mean of its divisors is an integer number (73825248).

Almost surely, 2^479864021 is an apocalyptic number.

It is an amenable number.

479864021 is a deficient number, since it is larger than the sum of its proper divisors (110737963).

479864021 is a wasteful number, since it uses less digits than its factorization.

479864021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273251.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 479864021 is about 21905.7987984917. The cubic root of 479864021 is about 782.8995851694.

The spelling of 479864021 in words is "four hundred seventy-nine million, eight hundred sixty-four thousand, twenty-one".