623102993 has 2 divisors, whose sum is σ = 623102994. Its totient is φ = 623102992.

The previous prime is 623102947. The next prime is 623103011. The reversal of 623102993 is 399201326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 621405184 + 1697809 = 24928^2 + 1303^2 .

It is a cyclic number.

It is not a de Polignac number, because 623102993 - 2⁸ = 623102737 is a prime.

It is not a weakly prime, because it can be changed into another prime (623102933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311551496 + 311551497.

It is an arithmetic number, because the mean of its divisors is an integer number (311551497).

Almost surely, 2^623102993 is an apocalyptic number.

It is an amenable number.

623102993 is a deficient number, since it is larger than the sum of its proper divisors (1).

623102993 is an equidigital number, since it uses as much as digits as its factorization.

623102993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 623102993 is about 24962.0310271420. The cubic root of 623102993 is about 854.1220736596.

The spelling of 623102993 in words is "six hundred twenty-three million, one hundred two thousand, nine hundred ninety-three".