623239403 has 2 divisors, whose sum is σ = 623239404. Its totient is φ = 623239402.

The previous prime is 623239399. The next prime is 623239417. The reversal of 623239403 is 304932326.

623239403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 623239403 - 2² = 623239399 is a prime.

It is a Chen prime.

It is equal to p_32473265 and since 623239403 and 32473265 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 623239403.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311619701 + 311619702.

It is an arithmetic number, because the mean of its divisors is an integer number (311619702).

Almost surely, 2^623239403 is an apocalyptic number.

623239403 is a deficient number, since it is larger than the sum of its proper divisors (1).

623239403 is an equidigital number, since it uses as much as digits as its factorization.

623239403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 623239403 is about 24964.7632273971. The cubic root of 623239403 is about 854.1843973804.

The spelling of 623239403 in words is "six hundred twenty-three million, two hundred thirty-nine thousand, four hundred three".