420627865 has 16 divisors (see below), whose sum is σ = 580688640. Its totient is φ = 286516800.

The previous prime is 420627853. The next prime is 420627881. The reversal of 420627865 is 568726024.

It is not a de Polignac number, because 420627865 - 2¹⁷ = 420496793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34510 + ... + 45079.

It is an arithmetic number, because the mean of its divisors is an integer number (36293040).

Almost surely, 2^420627865 is an apocalyptic number.

It is an amenable number.

420627865 is a deficient number, since it is larger than the sum of its proper divisors (160060775).

420627865 is a wasteful number, since it uses less digits than its factorization.

420627865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79752.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 420627865 is about 20509.2141487674. The cubic root of 420627865 is about 749.2602275927.

The spelling of 420627865 in words is "four hundred twenty million, six hundred twenty-seven thousand, eight hundred sixty-five".