34166621 has 2 divisors, whose sum is σ = 34166622. Its totient is φ = 34166620.

The previous prime is 34166581. The next prime is 34166623. The reversal of 34166621 is 12666143.

It is a happy number.

34166621 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., 32330596 + 1836025 = 5686^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 34166621 - 2²² = 29972317 is a prime.

Together with 34166623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34166623) 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, 17083310 + 17083311.

It is an arithmetic number, because the mean of its divisors is an integer number (17083311).

Almost surely, 2^34166621 is an apocalyptic number.

It is an amenable number.

34166621 is a deficient number, since it is larger than the sum of its proper divisors (1).

34166621 is an equidigital number, since it uses as much as digits as its factorization.

34166621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 34166621 is about 5845.2220659270. Note that the first 3 decimals coincide. The cubic root of 34166621 is about 324.4895212914.

The spelling of 34166621 in words is "thirty-four million, one hundred sixty-six thousand, six hundred twenty-one".