432221317 has 6 divisors (see below), whose sum is σ = 475086374. Its totient is φ = 392928360.

The previous prime is 432221299. The next prime is 432221341. The reversal of 432221317 is 713122234.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 401240961 + 30980356 = 20031^2 + 5566^2 .

It is a de Polignac number, because none of the positive numbers 2^k-432221317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 432221291 and 432221300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432221347) 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 in 5 ways as a sum of consecutive naturals, for example, 1785918 + ... + 1786159.

Almost surely, 2^432221317 is an apocalyptic number.

It is an amenable number.

432221317 is a deficient number, since it is larger than the sum of its proper divisors (42865057).

432221317 is a wasteful number, since it uses less digits than its factorization.

432221317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572099 (or 3572088 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 432221317 is about 20789.9330686753. The cubic root of 432221317 is about 756.0817013920.

The spelling of 432221317 in words is "four hundred thirty-two million, two hundred twenty-one thousand, three hundred seventeen".