434968921 has 2 divisors, whose sum is σ = 434968922. Its totient is φ = 434968920.

The previous prime is 434968889. The next prime is 434968931. The reversal of 434968921 is 129869434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388878400 + 46090521 = 19720^2 + 6789^2 .

It is a cyclic number.

It is not a de Polignac number, because 434968921 - 2⁵ = 434968889 is a prime.

It is not a weakly prime, because it can be changed into another prime (434968931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217484460 + 217484461.

It is an arithmetic number, because the mean of its divisors is an integer number (217484461).

Almost surely, 2^434968921 is an apocalyptic number.

It is an amenable number.

434968921 is a deficient number, since it is larger than the sum of its proper divisors (1).

434968921 is an equidigital number, since it uses as much as digits as its factorization.

434968921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 46.

The square root of 434968921 is about 20855.9085393085. The cubic root of 434968921 is about 757.6804399016.

The spelling of 434968921 in words is "four hundred thirty-four million, nine hundred sixty-eight thousand, nine hundred twenty-one".