432421237 has 2 divisors, whose sum is σ = 432421238. Its totient is φ = 432421236.

The previous prime is 432421217. The next prime is 432421259. The reversal of 432421237 is 732124234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290668401 + 141752836 = 17049^2 + 11906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432421237 is a prime.

It is a super-2 number, since 2×432421237² = 373976252417220338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432421217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216210618 + 216210619.

It is an arithmetic number, because the mean of its divisors is an integer number (216210619).

Almost surely, 2^432421237 is an apocalyptic number.

It is an amenable number.

432421237 is a deficient number, since it is larger than the sum of its proper divisors (1).

432421237 is an equidigital number, since it uses as much as digits as its factorization.

432421237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 28.

The square root of 432421237 is about 20794.7406091059. The cubic root of 432421237 is about 756.1982563053.

The spelling of 432421237 in words is "four hundred thirty-two million, four hundred twenty-one thousand, two hundred thirty-seven".