479269421 has 4 divisors (see below), whose sum is σ = 480109344. Its totient is φ = 478429500.

The previous prime is 479269397. The next prime is 479269477. The reversal of 479269421 is 124962974.

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 479269421 - 2¹⁴ = 479253037 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 (479259421) 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, 419105 + ... + 420246.

It is an arithmetic number, because the mean of its divisors is an integer number (120027336).

Almost surely, 2^479269421 is an apocalyptic number.

It is an amenable number.

479269421 is a deficient number, since it is larger than the sum of its proper divisors (839923).

479269421 is an equidigital number, since it uses as much as digits as its factorization.

479269421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839922.

The product of its digits is 217728, while the sum is 44.

The square root of 479269421 is about 21892.2228428271. Note that the first 3 decimals coincide. The cubic root of 479269421 is about 782.5760876245.

The spelling of 479269421 in words is "four hundred seventy-nine million, two hundred sixty-nine thousand, four hundred twenty-one".