432375661 has 2 divisors, whose sum is σ = 432375662. Its totient is φ = 432375660.

The previous prime is 432375623. The next prime is 432375667. The reversal of 432375661 is 166573234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345774025 + 86601636 = 18595^2 + 9306^2 .

It is a cyclic number.

It is not a de Polignac number, because 432375661 - 2¹⁹ = 431851373 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 432375661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432375667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216187830 + 216187831.

It is an arithmetic number, because the mean of its divisors is an integer number (216187831).

Almost surely, 2^432375661 is an apocalyptic number.

It is an amenable number.

432375661 is a deficient number, since it is larger than the sum of its proper divisors (1).

432375661 is an equidigital number, since it uses as much as digits as its factorization.

432375661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 37.

The square root of 432375661 is about 20793.6447262138. The cubic root of 432375661 is about 756.1716883051.

The spelling of 432375661 in words is "four hundred thirty-two million, three hundred seventy-five thousand, six hundred sixty-one".