420051897 has 12 divisors (see below), whose sum is σ = 608984064. Its totient is φ = 278999640.

The previous prime is 420051887. The next prime is 420051901. The reversal of 420051897 is 798150024.

It is not a de Polignac number, because 420051897 - 2⁸ = 420051641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420051887) 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, 83673 + ... + 88550.

It is an arithmetic number, because the mean of its divisors is an integer number (50748672).

Almost surely, 2^420051897 is an apocalyptic number.

It is an amenable number.

420051897 is a deficient number, since it is larger than the sum of its proper divisors (188932167).

420051897 is a wasteful number, since it uses less digits than its factorization.

420051897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172500 (or 172497 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 420051897 is about 20495.1676499608. The cubic root of 420051897 is about 748.9180826904.

The spelling of 420051897 in words is "four hundred twenty million, fifty-one thousand, eight hundred ninety-seven".