421675903 has 4 divisors (see below), whose sum is σ = 460010088. Its totient is φ = 383341720.

The previous prime is 421675901. The next prime is 421675913. The reversal of 421675903 is 309576124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421675903 - 2¹ = 421675901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421675901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19167076 + ... + 19167097.

It is an arithmetic number, because the mean of its divisors is an integer number (115002522).

Almost surely, 2^421675903 is an apocalyptic number.

421675903 is a deficient number, since it is larger than the sum of its proper divisors (38334185).

421675903 is a wasteful number, since it uses less digits than its factorization.

421675903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38334184.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 421675903 is about 20534.7486714593. The cubic root of 421675903 is about 749.8819980276.

The spelling of 421675903 in words is "four hundred twenty-one million, six hundred seventy-five thousand, nine hundred three".