631743023 has 4 divisors (see below), whose sum is σ = 642099528. Its totient is φ = 621386520.

The previous prime is 631743011. The next prime is 631743053. The reversal of 631743023 is 320347136.

It is a happy number.

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 631743023 - 2²⁴ = 614965807 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 (631743053) 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, 5178161 + ... + 5178282.

It is an arithmetic number, because the mean of its divisors is an integer number (160524882).

Almost surely, 2^631743023 is an apocalyptic number.

631743023 is a deficient number, since it is larger than the sum of its proper divisors (10356505).

631743023 is a wasteful number, since it uses less digits than its factorization.

631743023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10356504.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 631743023 is about 25134.4986621973. The cubic root of 631743023 is about 858.0517566307.

The spelling of 631743023 in words is "six hundred thirty-one million, seven hundred forty-three thousand, twenty-three".