13434391 has 2 divisors, whose sum is σ = 13434392. Its totient is φ = 13434390.

The previous prime is 13434389. The next prime is 13434401. The reversal of 13434391 is 19343431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13434391 - 2¹ = 13434389 is a prime.

Together with 13434389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13434331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6717195 + 6717196.

It is an arithmetic number, because the mean of its divisors is an integer number (6717196).

Almost surely, 2^13434391 is an apocalyptic number.

13434391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13434391 is an equidigital number, since it uses as much as digits as its factorization.

13434391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 13434391 is about 3665.2954860420. The cubic root of 13434391 is about 237.7237986490.

The spelling of 13434391 in words is "thirteen million, four hundred thirty-four thousand, three hundred ninety-one".