420727659 has 16 divisors (see below), whose sum is σ = 644177280. Its totient is φ = 241565760.

The previous prime is 420727651. The next prime is 420727663. The reversal of 420727659 is 956727024.

It is not a de Polignac number, because 420727659 - 2³ = 420727651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420727659.

It is not an unprimeable number, because it can be changed into a prime (420727651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334882 + ... + 336135.

It is an arithmetic number, because the mean of its divisors is an integer number (40261080).

Almost surely, 2^420727659 is an apocalyptic number.

420727659 is a deficient number, since it is larger than the sum of its proper divisors (223449621).

420727659 is a wasteful number, since it uses less digits than its factorization.

420727659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671050.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 420727659 is about 20511.6469109626. The cubic root of 420727659 is about 749.3194769268.

The spelling of 420727659 in words is "four hundred twenty million, seven hundred twenty-seven thousand, six hundred fifty-nine".