232660621 has 2 divisors, whose sum is σ = 232660622. Its totient is φ = 232660620.

The previous prime is 232660531. The next prime is 232660639. The reversal of 232660621 is 126066232.

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., 148571721 + 84088900 = 12189^2 + 9170^2 .

It is a cyclic number.

It is not a de Polignac number, because 232660621 - 2¹⁵ = 232627853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 232660621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232660321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116330310 + 116330311.

It is an arithmetic number, because the mean of its divisors is an integer number (116330311).

Almost surely, 2^232660621 is an apocalyptic number.

It is an amenable number.

232660621 is a deficient number, since it is larger than the sum of its proper divisors (1).

232660621 is an equidigital number, since it uses as much as digits as its factorization.

232660621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 232660621 is about 15253.2167427071. The cubic root of 232660621 is about 615.0460414558.

The spelling of 232660621 in words is "two hundred thirty-two million, six hundred sixty thousand, six hundred twenty-one".