232640623 has 2 divisors, whose sum is σ = 232640624. Its totient is φ = 232640622.

The previous prime is 232640593. The next prime is 232640633. The reversal of 232640623 is 326046232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232640623 - 2²¹ = 230543471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 232640591 and 232640600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232640633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116320311 + 116320312.

It is an arithmetic number, because the mean of its divisors is an integer number (116320312).

Almost surely, 2^232640623 is an apocalyptic number.

232640623 is a deficient number, since it is larger than the sum of its proper divisors (1).

232640623 is an equidigital number, since it uses as much as digits as its factorization.

232640623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 232640623 is about 15252.5611947633. The cubic root of 232640623 is about 615.0284191596.

Adding to 232640623 its reverse (326046232), we get a palindrome (558686855).

The spelling of 232640623 in words is "two hundred thirty-two million, six hundred forty thousand, six hundred twenty-three".