34279391 has 2 divisors, whose sum is σ = 34279392. Its totient is φ = 34279390.

The previous prime is 34279367. The next prime is 34279423. The reversal of 34279391 is 19397243.

It is a weak prime.

It is an emirp because it is prime and its reverse (19397243) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34279391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34279331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17139695 + 17139696.

It is an arithmetic number, because the mean of its divisors is an integer number (17139696).

Almost surely, 2^34279391 is an apocalyptic number.

34279391 is a deficient number, since it is larger than the sum of its proper divisors (1).

34279391 is an equidigital number, since it uses as much as digits as its factorization.

34279391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 38.

The square root of 34279391 is about 5854.8604594815. The cubic root of 34279391 is about 324.8461315030.

The spelling of 34279391 in words is "thirty-four million, two hundred seventy-nine thousand, three hundred ninety-one".