430891 has 2 divisors, whose sum is σ = 430892. Its totient is φ = 430890.

The previous prime is 430883. The next prime is 430897. The reversal of 430891 is 198034.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 430891 - 2³ = 430883 is a prime.

It is not a weakly prime, because it can be changed into another prime (430897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215445 + 215446.

It is an arithmetic number, because the mean of its divisors is an integer number (215446).

2⁴³⁰⁸⁹¹ is an apocalyptic number.

430891 is a deficient number, since it is larger than the sum of its proper divisors (1).

430891 is an equidigital number, since it uses as much as digits as its factorization.

430891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 430891 is about 656.4228819900. The cubic root of 430891 is about 75.5305199476.

The spelling of 430891 in words is "four hundred thirty thousand, eight hundred ninety-one".