34215869 has 2 divisors, whose sum is σ = 34215870. Its totient is φ = 34215868.

The previous prime is 34215851. The next prime is 34215919. The reversal of 34215869 is 96851243.

It is a happy number.

34215869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29571844 + 4644025 = 5438^2 + 2155^2 .

It is an emirp because it is prime and its reverse (96851243) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34215869 is a prime.

It is a super-2 number, since 2×34215869² = 2341451382850322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34215829) 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, 17107934 + 17107935.

It is an arithmetic number, because the mean of its divisors is an integer number (17107935).

Almost surely, 2^34215869 is an apocalyptic number.

It is an amenable number.

34215869 is a deficient number, since it is larger than the sum of its proper divisors (1).

34215869 is an equidigital number, since it uses as much as digits as its factorization.

34215869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 34215869 is about 5849.4332204069. The cubic root of 34215869 is about 324.6453535775.

The spelling of 34215869 in words is "thirty-four million, two hundred fifteen thousand, eight hundred sixty-nine".