623744063 has 4 divisors (see below), whose sum is σ = 626700408. Its totient is φ = 620787720.

The previous prime is 623744053. The next prime is 623744081. The reversal of 623744063 is 360447326.

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 623744063 - 2⁸ = 623743807 is a prime.

It is a super-2 number, since 2×623744063² = 778113312255495938, 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 (623744053) 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, 1477856 + ... + 1478277.

It is an arithmetic number, because the mean of its divisors is an integer number (156675102).

Almost surely, 2^623744063 is an apocalyptic number.

623744063 is a deficient number, since it is larger than the sum of its proper divisors (2956345).

623744063 is a wasteful number, since it uses less digits than its factorization.

623744063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956344.

The product of its (nonzero) digits is 72576, while the sum is 35.

The square root of 623744063 is about 24974.8686282831. The cubic root of 623744063 is about 854.4148900805.

The spelling of 623744063 in words is "six hundred twenty-three million, seven hundred forty-four thousand, sixty-three".