420660897 has 8 divisors (see below), whose sum is σ = 561130944. Its totient is φ = 280315728.

The previous prime is 420660827. The next prime is 420660899. The reversal of 420660897 is 798066024.

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

It is not a de Polignac number, because 420660897 - 2¹⁴ = 420644513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420660899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23053 + ... + 37050.

It is an arithmetic number, because the mean of its divisors is an integer number (70141368).

Almost surely, 2^420660897 is an apocalyptic number.

It is an amenable number.

420660897 is a deficient number, since it is larger than the sum of its proper divisors (140470047).

420660897 is a wasteful number, since it uses less digits than its factorization.

420660897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62439.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 420660897 is about 20510.0194295374. The cubic root of 420660897 is about 749.2798402702.

The spelling of 420660897 in words is "four hundred twenty million, six hundred sixty thousand, eight hundred ninety-seven".