420663795 has 8 divisors (see below), whose sum is σ = 673062096. Its totient is φ = 224354016.

The previous prime is 420663779. The next prime is 420663811. The reversal of 420663795 is 597366024.

It is an interprime number because it is at equal distance from previous prime (420663779) and next prime (420663811).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420663795 - 2⁴ = 420663779 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14022112 + ... + 14022141.

It is an arithmetic number, because the mean of its divisors is an integer number (84132762).

Almost surely, 2^420663795 is an apocalyptic number.

420663795 is a deficient number, since it is larger than the sum of its proper divisors (252398301).

420663795 is a wasteful number, since it uses less digits than its factorization.

420663795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28044261.

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 420663795 is about 20510.0900778129. The cubic root of 420663795 is about 749.2815609023.

The spelling of 420663795 in words is "four hundred twenty million, six hundred sixty-three thousand, seven hundred ninety-five".