232315987 has 2 divisors, whose sum is σ = 232315988. Its totient is φ = 232315986.

The previous prime is 232315973. The next prime is 232315997. The reversal of 232315987 is 789513232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232315987 - 2¹⁹ = 231791699 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (232315957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116157993 + 116157994.

It is an arithmetic number, because the mean of its divisors is an integer number (116157994).

Almost surely, 2^232315987 is an apocalyptic number.

232315987 is a deficient number, since it is larger than the sum of its proper divisors (1).

232315987 is an equidigital number, since it uses as much as digits as its factorization.

232315987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 232315987 is about 15241.9154636155. The cubic root of 232315987 is about 614.7422075961.

The spelling of 232315987 in words is "two hundred thirty-two million, three hundred fifteen thousand, nine hundred eighty-seven".