431590697 has 2 divisors, whose sum is σ = 431590698. Its totient is φ = 431590696.

The previous prime is 431590651. The next prime is 431590717. The reversal of 431590697 is 796095134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330366976 + 101223721 = 18176^2 + 10061^2 .

It is a cyclic number.

It is not a de Polignac number, because 431590697 - 2¹² = 431586601 is a prime.

It is not a weakly prime, because it can be changed into another prime (431590597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215795348 + 215795349.

It is an arithmetic number, because the mean of its divisors is an integer number (215795349).

Almost surely, 2^431590697 is an apocalyptic number.

It is an amenable number.

431590697 is a deficient number, since it is larger than the sum of its proper divisors (1).

431590697 is an equidigital number, since it uses as much as digits as its factorization.

431590697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 431590697 is about 20774.7610575910. The cubic root of 431590697 is about 755.7138093738.

The spelling of 431590697 in words is "four hundred thirty-one million, five hundred ninety thousand, six hundred ninety-seven".