431312417 has 2 divisors, whose sum is σ = 431312418. Its totient is φ = 431312416.

The previous prime is 431312383. The next prime is 431312443. The reversal of 431312417 is 714213134.

It is an a-pointer prime, because the next prime (431312443) can be obtained adding 431312417 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335585761 + 95726656 = 18319^2 + 9784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431312417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (431312617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215656208 + 215656209.

It is an arithmetic number, because the mean of its divisors is an integer number (215656209).

Almost surely, 2^431312417 is an apocalyptic number.

It is an amenable number.

431312417 is a deficient number, since it is larger than the sum of its proper divisors (1).

431312417 is an equidigital number, since it uses as much as digits as its factorization.

431312417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 26.

The square root of 431312417 is about 20768.0624276797. The cubic root of 431312417 is about 755.5513520151.

The spelling of 431312417 in words is "four hundred thirty-one million, three hundred twelve thousand, four hundred seventeen".