479065621 has 4 divisors (see below), whose sum is σ = 479271744. Its totient is φ = 478859500.

The previous prime is 479065619. The next prime is 479065633. The reversal of 479065621 is 126560974.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 479065621 - 2¹ = 479065619 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 (479065121) 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, 99535 + ... + 104236.

It is an arithmetic number, because the mean of its divisors is an integer number (119817936).

Almost surely, 2^479065621 is an apocalyptic number.

It is an amenable number.

479065621 is a deficient number, since it is larger than the sum of its proper divisors (206123).

479065621 is a wasteful number, since it uses less digits than its factorization.

479065621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206122.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 479065621 is about 21887.5677269084. The cubic root of 479065621 is about 782.4651468109.

The spelling of 479065621 in words is "four hundred seventy-nine million, sixty-five thousand, six hundred twenty-one".