431993223 has 32 divisors (see below), whose sum is σ = 647824320. Its totient is φ = 284497920.

The previous prime is 431993209. The next prime is 431993231. The reversal of 431993223 is 322399134.

It is not a de Polignac number, because 431993223 - 2⁴ = 431993207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431993203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1281711 + ... + 1282047.

It is an arithmetic number, because the mean of its divisors is an integer number (20244510).

Almost surely, 2^431993223 is an apocalyptic number.

431993223 is a deficient number, since it is larger than the sum of its proper divisors (215831097).

431993223 is a wasteful number, since it uses less digits than its factorization.

431993223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 778 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 431993223 is about 20784.4466609049. The cubic root of 431993223 is about 755.9486769140.

The spelling of 431993223 in words is "four hundred thirty-one million, nine hundred ninety-three thousand, two hundred twenty-three".