623883923 has 4 divisors (see below), whose sum is σ = 671875008. Its totient is φ = 575892840.

The previous prime is 623883919. The next prime is 623883929. The reversal of 623883923 is 329388326.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329388326 = 2 ⋅164694163.

It is a cyclic number.

It is not a de Polignac number, because 623883923 - 2² = 623883919 is a prime.

It is a super-2 number, since 2×623883923² = 778462298755739858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623883929) 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, 23995523 + ... + 23995548.

It is an arithmetic number, because the mean of its divisors is an integer number (167968752).

Almost surely, 2^623883923 is an apocalyptic number.

623883923 is a deficient number, since it is larger than the sum of its proper divisors (47991085).

623883923 is a wasteful number, since it uses less digits than its factorization.

623883923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47991084.

The product of its digits is 373248, while the sum is 44.

The square root of 623883923 is about 24977.6684860697. The cubic root of 623883923 is about 854.4787461518.

The spelling of 623883923 in words is "six hundred twenty-three million, eight hundred eighty-three thousand, nine hundred twenty-three".