232307993 has 2 divisors, whose sum is σ = 232307994. Its totient is φ = 232307992.

The previous prime is 232307987. The next prime is 232308001. The reversal of 232307993 is 399703232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201980944 + 30327049 = 14212^2 + 5507^2 .

It is a cyclic number.

It is not a de Polignac number, because 232307993 - 2²⁰ = 231259417 is a prime.

It is a super-2 number, since 2×232307993² = 107934007223376098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (232307923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116153996 + 116153997.

It is an arithmetic number, because the mean of its divisors is an integer number (116153997).

Almost surely, 2^232307993 is an apocalyptic number.

It is an amenable number.

232307993 is a deficient number, since it is larger than the sum of its proper divisors (1).

232307993 is an equidigital number, since it uses as much as digits as its factorization.

232307993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 38.

The square root of 232307993 is about 15241.6532239780. The cubic root of 232307993 is about 614.7351564160.

The spelling of 232307993 in words is "two hundred thirty-two million, three hundred seven thousand, nine hundred ninety-three".