432423637 has 2 divisors, whose sum is σ = 432423638. Its totient is φ = 432423636.

The previous prime is 432423631. The next prime is 432423659. The reversal of 432423637 is 736324234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220255281 + 212168356 = 14841^2 + 14566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432423637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432423631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216211818 + 216211819.

It is an arithmetic number, because the mean of its divisors is an integer number (216211819).

Almost surely, 2^432423637 is an apocalyptic number.

It is an amenable number.

432423637 is a deficient number, since it is larger than the sum of its proper divisors (1).

432423637 is an equidigital number, since it uses as much as digits as its factorization.

432423637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 34.

The square root of 432423637 is about 20794.7983159251. The cubic root of 432423637 is about 756.1996553057.

The spelling of 432423637 in words is "four hundred thirty-two million, four hundred twenty-three thousand, six hundred thirty-seven".