431647023 has 4 divisors (see below), whose sum is σ = 575529368. Its totient is φ = 287764680.

The previous prime is 431647001. The next prime is 431647091. The reversal of 431647023 is 320746134.

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

It is not a de Polignac number, because 431647023 - 2⁸ = 431646767 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 (431647123) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 71941168 + ... + 71941173.

It is an arithmetic number, because the mean of its divisors is an integer number (143882342).

Almost surely, 2^431647023 is an apocalyptic number.

431647023 is a deficient number, since it is larger than the sum of its proper divisors (143882345).

431647023 is a wasteful number, since it uses less digits than its factorization.

431647023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143882344.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 431647023 is about 20776.1166486906. The cubic root of 431647023 is about 755.7466834871.

The spelling of 431647023 in words is "four hundred thirty-one million, six hundred forty-seven thousand, twenty-three".