34668421 has 2 divisors, whose sum is σ = 34668422. Its totient is φ = 34668420.

The previous prime is 34668419. The next prime is 34668433. The reversal of 34668421 is 12486643.

34668421 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., 30404196 + 4264225 = 5514^2 + 2065^2 .

It is a cyclic number.

It is not a de Polignac number, because 34668421 - 2¹ = 34668419 is a prime.

Together with 34668419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34668481) 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, 17334210 + 17334211.

It is an arithmetic number, because the mean of its divisors is an integer number (17334211).

Almost surely, 2^34668421 is an apocalyptic number.

It is an amenable number.

34668421 is a deficient number, since it is larger than the sum of its proper divisors (1).

34668421 is an equidigital number, since it uses as much as digits as its factorization.

34668421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

The square root of 34668421 is about 5887.9895550179. The cubic root of 34668421 is about 326.0703832625.

The spelling of 34668421 in words is "thirty-four million, six hundred sixty-eight thousand, four hundred twenty-one".