420462897 has 4 divisors (see below), whose sum is σ = 560617200. Its totient is φ = 280308596.

The previous prime is 420462883. The next prime is 420462919. The reversal of 420462897 is 798264024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420462897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420460897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70077147 + ... + 70077152.

It is an arithmetic number, because the mean of its divisors is an integer number (140154300).

Almost surely, 2^420462897 is an apocalyptic number.

It is an amenable number.

420462897 is a deficient number, since it is larger than the sum of its proper divisors (140154303).

420462897 is a wasteful number, since it uses less digits than its factorization.

420462897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140154302.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 420462897 is about 20505.1919522837. The cubic root of 420462897 is about 749.1622628325.

The spelling of 420462897 in words is "four hundred twenty million, four hundred sixty-two thousand, eight hundred ninety-seven".