431443349 has 2 divisors, whose sum is σ = 431443350. Its totient is φ = 431443348.

The previous prime is 431443321. The next prime is 431443403. The reversal of 431443349 is 943344134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220671025 + 210772324 = 14855^2 + 14518^2 .

It is a cyclic number.

It is not a de Polignac number, because 431443349 - 2⁸ = 431443093 is a prime.

It is a super-2 number, since 2×431443349² = 372286726792671602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431443049) 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, 215721674 + 215721675.

It is an arithmetic number, because the mean of its divisors is an integer number (215721675).

Almost surely, 2^431443349 is an apocalyptic number.

It is an amenable number.

431443349 is a deficient number, since it is larger than the sum of its proper divisors (1).

431443349 is an equidigital number, since it uses as much as digits as its factorization.

431443349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 35.

The square root of 431443349 is about 20771.2144324784. The cubic root of 431443349 is about 755.6277976395.

The spelling of 431443349 in words is "four hundred thirty-one million, four hundred forty-three thousand, three hundred forty-nine".