393389123 has 2 divisors, whose sum is σ = 393389124. Its totient is φ = 393389122.

The previous prime is 393389081. The next prime is 393389141. The reversal of 393389123 is 321983393.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 393389123 - 2⁸ = 393388867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (393389023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196694561 + 196694562.

It is an arithmetic number, because the mean of its divisors is an integer number (196694562).

Almost surely, 2^393389123 is an apocalyptic number.

393389123 is a deficient number, since it is larger than the sum of its proper divisors (1).

393389123 is an equidigital number, since it uses as much as digits as its factorization.

393389123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 41.

The square root of 393389123 is about 19834.0395028345. The cubic root of 393389123 is about 732.7246170174.

The spelling of 393389123 in words is "three hundred ninety-three million, three hundred eighty-nine thousand, one hundred twenty-three".