923648623 has 2 divisors, whose sum is σ = 923648624. Its totient is φ = 923648622.

The previous prime is 923648617. The next prime is 923648639. The reversal of 923648623 is 326846329.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 923648623 - 2⁵ = 923648591 is a prime.

It is a super-2 number, since 2×923648623² = 1706253557539592258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 923648623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (923648603) 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 as a sum of consecutive naturals, namely, 461824311 + 461824312.

It is an arithmetic number, because the mean of its divisors is an integer number (461824312).

Almost surely, 2^923648623 is an apocalyptic number.

923648623 is a deficient number, since it is larger than the sum of its proper divisors (1).

923648623 is an equidigital number, since it uses as much as digits as its factorization.

923648623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 43.

The square root of 923648623 is about 30391.5880302428. The cubic root of 923648623 is about 973.8728585130.

The spelling of 923648623 in words is "nine hundred twenty-three million, six hundred forty-eight thousand, six hundred twenty-three".