4172640317 has 2 divisors, whose sum is σ = 4172640318. Its totient is φ = 4172640316.

The previous prime is 4172640301. The next prime is 4172640337. The reversal of 4172640317 is 7130462714.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4032123001 + 140517316 = 63499^2 + 11854^2 .

It is a cyclic number.

It is not a de Polignac number, because 4172640317 - 2⁴ = 4172640301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4172640337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2086320158 + 2086320159.

It is an arithmetic number, because the mean of its divisors is an integer number (2086320159).

Almost surely, 2^4172640317 is an apocalyptic number.

It is an amenable number.

4172640317 is a deficient number, since it is larger than the sum of its proper divisors (1).

4172640317 is an equidigital number, since it uses as much as digits as its factorization.

4172640317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 4172640317 is about 64595.9775605262. The cubic root of 4172640317 is about 1609.9176066010.

The spelling of 4172640317 in words is "four billion, one hundred seventy-two million, six hundred forty thousand, three hundred seventeen".