34389889 has 2 divisors, whose sum is σ = 34389890. Its totient is φ = 34389888.

The previous prime is 34389871. The next prime is 34389893. The reversal of 34389889 is 98898343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17514225 + 16875664 = 4185^2 + 4108^2 .

It is an emirp because it is prime and its reverse (98898343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34389889 - 2¹¹ = 34387841 is a prime.

It is not a weakly prime, because it can be changed into another prime (34381889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17194944 + 17194945.

It is an arithmetic number, because the mean of its divisors is an integer number (17194945).

Almost surely, 2^34389889 is an apocalyptic number.

It is an amenable number.

34389889 is a deficient number, since it is larger than the sum of its proper divisors (1).

34389889 is an equidigital number, since it uses as much as digits as its factorization.

34389889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 52.

The square root of 34389889 is about 5864.2893005035. The cubic root of 34389889 is about 325.1947991938.

The spelling of 34389889 in words is "thirty-four million, three hundred eighty-nine thousand, eight hundred eighty-nine".