420779601 has 12 divisors (see below), whose sum is σ = 663046800. Its totient is φ = 255017880.

The previous prime is 420779599. The next prime is 420779627. The reversal of 420779601 is 106977024.

It is a happy number.

420779601 is a `hidden beast` number, since 42 + 0 + 7 + 7 + 9 + 601 = 666.

It is not a de Polignac number, because 420779601 - 2¹ = 420779599 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420779701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2125051 + ... + 2125248.

It is an arithmetic number, because the mean of its divisors is an integer number (55253900).

Almost surely, 2^420779601 is an apocalyptic number.

It is an amenable number.

420779601 is a deficient number, since it is larger than the sum of its proper divisors (242267199).

420779601 is a wasteful number, since it uses less digits than its factorization.

420779601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250316 (or 4250313 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 420779601 is about 20512.9130305766. The cubic root of 420779601 is about 749.3503120366.

The spelling of 420779601 in words is "four hundred twenty million, seven hundred seventy-nine thousand, six hundred one".