431234369 has 2 divisors, whose sum is σ = 431234370. Its totient is φ = 431234368.

The previous prime is 431234339. The next prime is 431234389. The reversal of 431234369 is 963432134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349241344 + 81993025 = 18688^2 + 9055^2 .

It is a cyclic number.

It is not a de Polignac number, because 431234369 - 2²⁰ = 430185793 is a prime.

It is a super-2 number, since 2×431234369² = 371926162013656322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (431234339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215617184 + 215617185.

It is an arithmetic number, because the mean of its divisors is an integer number (215617185).

Almost surely, 2^431234369 is an apocalyptic number.

It is an amenable number.

431234369 is a deficient number, since it is larger than the sum of its proper divisors (1).

431234369 is an equidigital number, since it uses as much as digits as its factorization.

431234369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 35.

The square root of 431234369 is about 20766.1833036309. The cubic root of 431234369 is about 755.5057757484.

The spelling of 431234369 in words is "four hundred thirty-one million, two hundred thirty-four thousand, three hundred sixty-nine".