626408023 has 2 divisors, whose sum is σ = 626408024. Its totient is φ = 626408022.

The previous prime is 626408011. The next prime is 626408051. The reversal of 626408023 is 320804626.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 626408023 - 2¹⁷ = 626276951 is a prime.

It is a super-2 number, since 2×626408023² = 784774022557537058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (626408063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313204011 + 313204012.

It is an arithmetic number, because the mean of its divisors is an integer number (313204012).

Almost surely, 2^626408023 is an apocalyptic number.

626408023 is a deficient number, since it is larger than the sum of its proper divisors (1).

626408023 is an equidigital number, since it uses as much as digits as its factorization.

626408023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 626408023 is about 25028.1446176100. The cubic root of 626408023 is about 855.6295412533.

The spelling of 626408023 in words is "six hundred twenty-six million, four hundred eight thousand, twenty-three".