434500091 has 2 divisors, whose sum is σ = 434500092. Its totient is φ = 434500090.

The previous prime is 434500063. The next prime is 434500111. The reversal of 434500091 is 190005434.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434500091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 434500091.

It is not a weakly prime, because it can be changed into another prime (434500691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217250045 + 217250046.

It is an arithmetic number, because the mean of its divisors is an integer number (217250046).

Almost surely, 2^434500091 is an apocalyptic number.

434500091 is a deficient number, since it is larger than the sum of its proper divisors (1).

434500091 is an equidigital number, since it uses as much as digits as its factorization.

434500091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 434500091 is about 20844.6657684886. The cubic root of 434500091 is about 757.4081208113.

The spelling of 434500091 in words is "four hundred thirty-four million, five hundred thousand, ninety-one".