34798921 has 2 divisors, whose sum is σ = 34798922. Its totient is φ = 34798920.

The previous prime is 34798919. The next prime is 34798943. The reversal of 34798921 is 12989743.

34798921 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., 19891600 + 14907321 = 4460^2 + 3861^2 .

It is a cyclic number.

It is not a de Polignac number, because 34798921 - 2¹ = 34798919 is a prime.

Together with 34798919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (34798901) 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, 17399460 + 17399461.

It is an arithmetic number, because the mean of its divisors is an integer number (17399461).

Almost surely, 2^34798921 is an apocalyptic number.

It is an amenable number.

34798921 is a deficient number, since it is larger than the sum of its proper divisors (1).

34798921 is an equidigital number, since it uses as much as digits as its factorization.

34798921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 34798921 is about 5899.0610269771. The cubic root of 34798921 is about 326.4790058943.

The spelling of 34798921 in words is "thirty-four million, seven hundred ninety-eight thousand, nine hundred twenty-one".