431471317 has 2 divisors, whose sum is σ = 431471318. Its totient is φ = 431471316.

The previous prime is 431471311. The next prime is 431471321. The reversal of 431471317 is 713174134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397842916 + 33628401 = 19946^2 + 5799^2 .

It is a cyclic number.

It is not a de Polignac number, because 431471317 - 2¹⁵ = 431438549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431471311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215735658 + 215735659.

It is an arithmetic number, because the mean of its divisors is an integer number (215735659).

Almost surely, 2^431471317 is an apocalyptic number.

It is an amenable number.

431471317 is a deficient number, since it is larger than the sum of its proper divisors (1).

431471317 is an equidigital number, since it uses as much as digits as its factorization.

431471317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 31.

The square root of 431471317 is about 20771.8876609710. The cubic root of 431471317 is about 755.6441249601.

The spelling of 431471317 in words is "four hundred thirty-one million, four hundred seventy-one thousand, three hundred seventeen".