34239389 has 2 divisors, whose sum is σ = 34239390. Its totient is φ = 34239388.

The previous prime is 34239371. The next prime is 34239397. The reversal of 34239389 is 98393243.

34239389 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 can be written as a sum of positive squares in only one way, i.e., 33120025 + 1119364 = 5755^2 + 1058^2 .

It is a cyclic number.

It is not a de Polignac number, because 34239389 - 2²⁴ = 17462173 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 (34239329) 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, 17119694 + 17119695.

It is an arithmetic number, because the mean of its divisors is an integer number (17119695).

Almost surely, 2^34239389 is an apocalyptic number.

It is an amenable number.

34239389 is a deficient number, since it is larger than the sum of its proper divisors (1).

34239389 is an equidigital number, since it uses as much as digits as its factorization.

34239389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 41.

The square root of 34239389 is about 5851.4433262230. The cubic root of 34239389 is about 324.7197236483.

The spelling of 34239389 in words is "thirty-four million, two hundred thirty-nine thousand, three hundred eighty-nine".