531904469 has 2 divisors, whose sum is σ = 531904470. Its totient is φ = 531904468.

The previous prime is 531904459. The next prime is 531904543. The reversal of 531904469 is 964409135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 531901969 + 2500 = 23063^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 531904469 - 2²⁴ = 515127253 is a prime.

It is a super-2 number, since 2×531904469² = 565844728284343922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531904459) 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, 265952234 + 265952235.

It is an arithmetic number, because the mean of its divisors is an integer number (265952235).

Almost surely, 2^531904469 is an apocalyptic number.

It is an amenable number.

531904469 is a deficient number, since it is larger than the sum of its proper divisors (1).

531904469 is an equidigital number, since it uses as much as digits as its factorization.

531904469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 531904469 is about 23063.0541993033. The cubic root of 531904469 is about 810.2353982294.

The spelling of 531904469 in words is "five hundred thirty-one million, nine hundred four thousand, four hundred sixty-nine".