34030391 has 2 divisors, whose sum is σ = 34030392. Its totient is φ = 34030390.

The previous prime is 34030361. The next prime is 34030411. The reversal of 34030391 is 19303043.

It is a strong prime.

It is an emirp because it is prime and its reverse (19303043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34030391 - 2⁶ = 34030327 is a prime.

It is a super-2 number, since 2×34030391² = 2316135023225762, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34030331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17015195 + 17015196.

It is an arithmetic number, because the mean of its divisors is an integer number (17015196).

Almost surely, 2^34030391 is an apocalyptic number.

34030391 is a deficient number, since it is larger than the sum of its proper divisors (1).

34030391 is an equidigital number, since it uses as much as digits as its factorization.

34030391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 34030391 is about 5833.5573195093. The cubic root of 34030391 is about 324.0576759337.

The spelling of 34030391 in words is "thirty-four million, thirty thousand, three hundred ninety-one".