34945891 has 2 divisors, whose sum is σ = 34945892. Its totient is φ = 34945890.

The previous prime is 34945873. The next prime is 34945907. The reversal of 34945891 is 19854943.

It is a happy number.

34945891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34945891 - 2²³ = 26557283 is a prime.

It is not a weakly prime, because it can be changed into another prime (34945811) 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, 17472945 + 17472946.

It is an arithmetic number, because the mean of its divisors is an integer number (17472946).

Almost surely, 2^34945891 is an apocalyptic number.

34945891 is a deficient number, since it is larger than the sum of its proper divisors (1).

34945891 is an equidigital number, since it uses as much as digits as its factorization.

34945891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 34945891 is about 5911.5049691259. The cubic root of 34945891 is about 326.9379782430.

The spelling of 34945891 in words is "thirty-four million, nine hundred forty-five thousand, eight hundred ninety-one".