12307993 has 2 divisors, whose sum is σ = 12307994. Its totient is φ = 12307992.

The previous prime is 12307957. The next prime is 12308011. The reversal of 12307993 is 39970321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10969344 + 1338649 = 3312^2 + 1157^2 .

It is a cyclic number.

It is not a de Polignac number, because 12307993 - 2⁹ = 12307481 is a prime.

It is equal to p₈₀₆₉₂₉ and since 12307993 and 806929 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12307903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6153996 + 6153997.

It is an arithmetic number, because the mean of its divisors is an integer number (6153997).

Almost surely, 2^12307993 is an apocalyptic number.

It is an amenable number.

12307993 is a deficient number, since it is larger than the sum of its proper divisors (1).

12307993 is an equidigital number, since it uses as much as digits as its factorization.

12307993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 12307993 is about 3508.2749322138. The cubic root of 12307993 is about 230.8850148921.

The spelling of 12307993 in words is "twelve million, three hundred seven thousand, nine hundred ninety-three".