431346089 has 2 divisors, whose sum is σ = 431346090. Its totient is φ = 431346088.

The previous prime is 431346061. The next prime is 431346107. The reversal of 431346089 is 980643134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 364237225 + 67108864 = 19085^2 + 8192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431346089 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (431343089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215673044 + 215673045.

It is an arithmetic number, because the mean of its divisors is an integer number (215673045).

Almost surely, 2^431346089 is an apocalyptic number.

It is an amenable number.

431346089 is a deficient number, since it is larger than the sum of its proper divisors (1).

431346089 is an equidigital number, since it uses as much as digits as its factorization.

431346089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 431346089 is about 20768.8730796835. The cubic root of 431346089 is about 755.5710131409.

The spelling of 431346089 in words is "four hundred thirty-one million, three hundred forty-six thousand, eighty-nine".