431426623 has 8 divisors (see below), whose sum is σ = 446474160. Its totient is φ = 416557440.

The previous prime is 431426599. The next prime is 431426657. The reversal of 431426623 is 326624134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 431426623 - 2²¹ = 429329471 is a prime.

It is a super-2 number, since 2×431426623² = 372257862066368258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431426683) 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 7 ways as a sum of consecutive naturals, for example, 39658 + ... + 49351.

It is an arithmetic number, because the mean of its divisors is an integer number (55809270).

Almost surely, 2^431426623 is an apocalyptic number.

431426623 is a deficient number, since it is larger than the sum of its proper divisors (15047537).

431426623 is a wasteful number, since it uses less digits than its factorization.

431426623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89177.

The product of its digits is 20736, while the sum is 31.

The square root of 431426623 is about 20770.8118040677. The cubic root of 431426623 is about 755.6180329015.

The spelling of 431426623 in words is "four hundred thirty-one million, four hundred twenty-six thousand, six hundred twenty-three".