420972707 has 8 divisors (see below), whose sum is σ = 431778480. Its totient is φ = 410192640.

The previous prime is 420972701. The next prime is 420972719. The reversal of 420972707 is 707279024.

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 420972707 - 2²⁶ = 353863843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420972701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29243 + ... + 41195.

It is an arithmetic number, because the mean of its divisors is an integer number (53972310).

Almost surely, 2^420972707 is an apocalyptic number.

420972707 is a deficient number, since it is larger than the sum of its proper divisors (10805773).

420972707 is a wasteful number, since it uses less digits than its factorization.

420972707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12853.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 420972707 is about 20517.6194281890. The cubic root of 420972707 is about 749.4649262040.

The spelling of 420972707 in words is "four hundred twenty million, nine hundred seventy-two thousand, seven hundred seven".