123793993 has 2 divisors, whose sum is σ = 123793994. Its totient is φ = 123793992.

The previous prime is 123793979. The next prime is 123794003. The reversal of 123793993 is 399397321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112423609 + 11370384 = 10603^2 + 3372^2 .

It is a cyclic number.

It is not a de Polignac number, because 123793993 - 2⁵ = 123793961 is a prime.

It is not a weakly prime, because it can be changed into another prime (123793903) 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, 61896996 + 61896997.

It is an arithmetic number, because the mean of its divisors is an integer number (61896997).

Almost surely, 2^123793993 is an apocalyptic number.

It is an amenable number.

123793993 is a deficient number, since it is larger than the sum of its proper divisors (1).

123793993 is an equidigital number, since it uses as much as digits as its factorization.

123793993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 275562, while the sum is 46.

The square root of 123793993 is about 11126.2748932426. The cubic root of 123793993 is about 498.3867913803.

The spelling of 123793993 in words is "one hundred twenty-three million, seven hundred ninety-three thousand, nine hundred ninety-three".