431099 has 2 divisors, whose sum is σ = 431100. Its totient is φ = 431098.

The previous prime is 431083. The next prime is 431107. The reversal of 431099 is 990134.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431099 - 2⁴ = 431083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (431029) 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, 215549 + 215550.

It is an arithmetic number, because the mean of its divisors is an integer number (215550).

2⁴³¹⁰⁹⁹ is an apocalyptic number.

431099 is a deficient number, since it is larger than the sum of its proper divisors (1).

431099 is an equidigital number, since it uses as much as digits as its factorization.

431099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 431099 is about 656.5812973273. The cubic root of 431099 is about 75.5426713741.

The spelling of 431099 in words is "four hundred thirty-one thousand, ninety-nine".