34434391 has 2 divisors, whose sum is σ = 34434392. Its totient is φ = 34434390.

The previous prime is 34434373. The next prime is 34434451. The reversal of 34434391 is 19343443.

34434391 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34434391 - 2⁷ = 34434263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34434341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17217195 + 17217196.

It is an arithmetic number, because the mean of its divisors is an integer number (17217196).

Almost surely, 2^34434391 is an apocalyptic number.

34434391 is a deficient number, since it is larger than the sum of its proper divisors (1).

34434391 is an equidigital number, since it uses as much as digits as its factorization.

34434391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 31.

The square root of 34434391 is about 5868.0823954679. The cubic root of 34434391 is about 325.3350107645.

The spelling of 34434391 in words is "thirty-four million, four hundred thirty-four thousand, three hundred ninety-one".