420704479 has 16 divisors (see below), whose sum is σ = 493365600. Its totient is φ = 355211136.

The previous prime is 420704447. The next prime is 420704483. The reversal of 420704479 is 974407024.

It is a cyclic number.

It is not a de Polignac number, because 420704479 - 2⁵ = 420704447 is a prime.

It is a super-2 number, since 2×420704479² = 353984517301322882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420704429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22204 + ... + 36529.

It is an arithmetic number, because the mean of its divisors is an integer number (30835350).

Almost surely, 2^420704479 is an apocalyptic number.

420704479 is a deficient number, since it is larger than the sum of its proper divisors (72661121).

420704479 is a wasteful number, since it uses less digits than its factorization.

420704479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58794.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 420704479 is about 20511.0818583516. The cubic root of 420704479 is about 749.3057154161.

The spelling of 420704479 in words is "four hundred twenty million, seven hundred four thousand, four hundred seventy-nine".