432172291 has 2 divisors, whose sum is σ = 432172292. Its totient is φ = 432172290.

The previous prime is 432172261. The next prime is 432172303. The reversal of 432172291 is 192271234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 432172291 - 2⁵ = 432172259 is a prime.

It is not a weakly prime, because it can be changed into another prime (432172201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216086145 + 216086146.

It is an arithmetic number, because the mean of its divisors is an integer number (216086146).

Almost surely, 2^432172291 is an apocalyptic number.

432172291 is a deficient number, since it is larger than the sum of its proper divisors (1).

432172291 is an equidigital number, since it uses as much as digits as its factorization.

432172291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 432172291 is about 20788.7539549632. The cubic root of 432172291 is about 756.0531133657.

The spelling of 432172291 in words is "four hundred thirty-two million, one hundred seventy-two thousand, two hundred ninety-one".