531422399 has 2 divisors, whose sum is σ = 531422400. Its totient is φ = 531422398.

The previous prime is 531422393. The next prime is 531422413. The reversal of 531422399 is 993224135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531422399 - 2²⁸ = 262986943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531422393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265711199 + 265711200.

It is an arithmetic number, because the mean of its divisors is an integer number (265711200).

Almost surely, 2^531422399 is an apocalyptic number.

531422399 is a deficient number, since it is larger than the sum of its proper divisors (1).

531422399 is an equidigital number, since it uses as much as digits as its factorization.

531422399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 38.

The square root of 531422399 is about 23052.6006992704. The cubic root of 531422399 is about 809.9905496027.

The spelling of 531422399 in words is "five hundred thirty-one million, four hundred twenty-two thousand, three hundred ninety-nine".