431458969 has 2 divisors, whose sum is σ = 431458970. Its totient is φ = 431458968.

The previous prime is 431458967. The next prime is 431458987. The reversal of 431458969 is 969854134.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403527744 + 27931225 = 20088^2 + 5285^2 .

It is a cyclic number.

It is not a de Polignac number, because 431458969 - 2¹ = 431458967 is a prime.

It is a super-2 number, since 2×431458969² = 372313683861085922, which contains 22 as substring.

Together with 431458967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (431458967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215729484 + 215729485.

It is an arithmetic number, because the mean of its divisors is an integer number (215729485).

Almost surely, 2^431458969 is an apocalyptic number.

It is an amenable number.

431458969 is a deficient number, since it is larger than the sum of its proper divisors (1).

431458969 is an equidigital number, since it uses as much as digits as its factorization.

431458969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 49.

The square root of 431458969 is about 20771.5904302006. The cubic root of 431458969 is about 755.6369164603.

The spelling of 431458969 in words is "four hundred thirty-one million, four hundred fifty-eight thousand, nine hundred sixty-nine".