623796493 has 2 divisors, whose sum is σ = 623796494. Its totient is φ = 623796492.

The previous prime is 623796457. The next prime is 623796527. The reversal of 623796493 is 394697326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 370254564 + 253541929 = 19242^2 + 15923^2 .

It is a cyclic number.

It is not a de Polignac number, because 623796493 - 2²¹ = 621699341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623796893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311898246 + 311898247.

It is an arithmetic number, because the mean of its divisors is an integer number (311898247).

Almost surely, 2^623796493 is an apocalyptic number.

It is an amenable number.

623796493 is a deficient number, since it is larger than the sum of its proper divisors (1).

623796493 is an equidigital number, since it uses as much as digits as its factorization.

623796493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 49.

The square root of 623796493 is about 24975.9182613973. The cubic root of 623796493 is about 854.4388292356.

The spelling of 623796493 in words is "six hundred twenty-three million, seven hundred ninety-six thousand, four hundred ninety-three".