421712265 has 32 divisors (see below), whose sum is σ = 744379776. Its totient is φ = 202544640.

The previous prime is 421712237. The next prime is 421712281. The reversal of 421712265 is 562217124.

It is not a de Polignac number, because 421712265 - 2⁹ = 421711753 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18379 + ... + 34368.

It is an arithmetic number, because the mean of its divisors is an integer number (23261868).

Almost surely, 2^421712265 is an apocalyptic number.

It is an amenable number.

421712265 is a deficient number, since it is larger than the sum of its proper divisors (322667511).

421712265 is a wasteful number, since it uses less digits than its factorization.

421712265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52809.

The product of its digits is 6720, while the sum is 30.

The square root of 421712265 is about 20535.6340296568. The cubic root of 421712265 is about 749.9035520420.

Adding to 421712265 its reverse (562217124), we get a palindrome (983929389).

The spelling of 421712265 in words is "four hundred twenty-one million, seven hundred twelve thousand, two hundred sixty-five".