232640297 has 2 divisors, whose sum is σ = 232640298. Its totient is φ = 232640296.

The previous prime is 232640263. The next prime is 232640299. The reversal of 232640297 is 792046232.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182358016 + 50282281 = 13504^2 + 7091^2 .

It is a cyclic number.

It is not a de Polignac number, because 232640297 - 2²⁰ = 231591721 is a prime.

Together with 232640299, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (232640299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116320148 + 116320149.

It is an arithmetic number, because the mean of its divisors is an integer number (116320149).

Almost surely, 2^232640297 is an apocalyptic number.

It is an amenable number.

232640297 is a deficient number, since it is larger than the sum of its proper divisors (1).

232640297 is an equidigital number, since it uses as much as digits as its factorization.

232640297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 232640297 is about 15252.5505080298. The cubic root of 232640297 is about 615.0281318790.

The spelling of 232640297 in words is "two hundred thirty-two million, six hundred forty thousand, two hundred ninety-seven".