431100889 has 2 divisors, whose sum is σ = 431100890. Its totient is φ = 431100888.

The previous prime is 431100871. The next prime is 431100893. The reversal of 431100889 is 988001134.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235100889 + 196000000 = 15333^2 + 14000^2 .

It is a cyclic number.

It is not a de Polignac number, because 431100889 - 2¹¹ = 431098841 is a prime.

It is not a weakly prime, because it can be changed into another prime (431100809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215550444 + 215550445.

It is an arithmetic number, because the mean of its divisors is an integer number (215550445).

Almost surely, 2^431100889 is an apocalyptic number.

It is an amenable number.

431100889 is a deficient number, since it is larger than the sum of its proper divisors (1).

431100889 is an equidigital number, since it uses as much as digits as its factorization.

431100889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 431100889 is about 20762.9691759151. The cubic root of 431100889 is about 755.4278171217.

The spelling of 431100889 in words is "four hundred thirty-one million, one hundred thousand, eight hundred eighty-nine".