431443069 has 2 divisors, whose sum is σ = 431443070. Its totient is φ = 431443068.

The previous prime is 431443049. The next prime is 431443091. The reversal of 431443069 is 960344134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384356025 + 47087044 = 19605^2 + 6862^2 .

It is a cyclic number.

It is not a de Polignac number, because 431443069 - 2⁷ = 431442941 is a prime.

It is a super-2 number, since 2×431443069² = 372286243576277522, 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 polite number, since it can be written as a sum of consecutive naturals, namely, 215721534 + 215721535.

It is an arithmetic number, because the mean of its divisors is an integer number (215721535).

Almost surely, 2^431443069 is an apocalyptic number.

It is an amenable number.

431443069 is a deficient number, since it is larger than the sum of its proper divisors (1).

431443069 is an equidigital number, since it uses as much as digits as its factorization.

431443069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 431443069 is about 20771.2076923803. The cubic root of 431443069 is about 755.6276341759.

The spelling of 431443069 in words is "four hundred thirty-one million, four hundred forty-three thousand, sixty-nine".