420710969 has 16 divisors (see below), whose sum is σ = 484638720. Its totient is φ = 357754320.

The previous prime is 420710947. The next prime is 420710989. The reversal of 420710969 is 969017024.

It is a de Polignac number, because none of the positive numbers 2^k-420710969 is a prime.

It is a super-2 number, since 2×420710969² = 353995438873837922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420710989) 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 15 ways as a sum of consecutive naturals, for example, 878072 + ... + 878550.

It is an arithmetic number, because the mean of its divisors is an integer number (30289920).

Almost surely, 2^420710969 is an apocalyptic number.

It is an amenable number.

420710969 is a deficient number, since it is larger than the sum of its proper divisors (63927751).

420710969 is a wasteful number, since it uses less digits than its factorization.

420710969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 420710969 is about 20511.2400649010. The cubic root of 420710969 is about 749.3095684526.

The spelling of 420710969 in words is "four hundred twenty million, seven hundred ten thousand, nine hundred sixty-nine".