531434797 has 2 divisors, whose sum is σ = 531434798. Its totient is φ = 531434796.

The previous prime is 531434777. The next prime is 531434809. The reversal of 531434797 is 797434135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 516834756 + 14600041 = 22734^2 + 3821^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531434797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531434777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265717398 + 265717399.

It is an arithmetic number, because the mean of its divisors is an integer number (265717399).

Almost surely, 2^531434797 is an apocalyptic number.

It is an amenable number.

531434797 is a deficient number, since it is larger than the sum of its proper divisors (1).

531434797 is an equidigital number, since it uses as much as digits as its factorization.

531434797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 43.

The square root of 531434797 is about 23052.8696044549. The cubic root of 531434797 is about 809.9968485372.

The spelling of 531434797 in words is "five hundred thirty-one million, four hundred thirty-four thousand, seven hundred ninety-seven".