623868733 has 2 divisors, whose sum is σ = 623868734. Its totient is φ = 623868732.

The previous prime is 623868727. The next prime is 623868779. The reversal of 623868733 is 337868326.

It is a happy number.

It is an a-pointer prime, because the next prime (623868779) can be obtained adding 623868733 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440076484 + 183792249 = 20978^2 + 13557^2 .

It is a cyclic number.

It is not a de Polignac number, because 623868733 - 2⁵ = 623868701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623868233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311934366 + 311934367.

It is an arithmetic number, because the mean of its divisors is an integer number (311934367).

Almost surely, 2^623868733 is an apocalyptic number.

It is an amenable number.

623868733 is a deficient number, since it is larger than the sum of its proper divisors (1).

623868733 is an equidigital number, since it uses as much as digits as its factorization.

623868733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 46.

The square root of 623868733 is about 24977.3644126037. The cubic root of 623868733 is about 854.4718112947.

The spelling of 623868733 in words is "six hundred twenty-three million, eight hundred sixty-eight thousand, seven hundred thirty-three".