421690876 has 6 divisors (see below), whose sum is σ = 737959040. Its totient is φ = 210845436.

The previous prime is 421690859. The next prime is 421690889. The reversal of 421690876 is 678096124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52711356 + ... + 52711363.

Almost surely, 2^421690876 is an apocalyptic number.

It is an amenable number.

421690876 is a deficient number, since it is larger than the sum of its proper divisors (316268164).

421690876 is a wasteful number, since it uses less digits than its factorization.

421690876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105422723 (or 105422721 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 421690876 is about 20535.1132453659. The cubic root of 421690876 is about 749.8908736042.

The spelling of 421690876 in words is "four hundred twenty-one million, six hundred ninety thousand, eight hundred seventy-six".