34890491 has 2 divisors, whose sum is σ = 34890492. Its totient is φ = 34890490.

The previous prime is 34890439. The next prime is 34890521. The reversal of 34890491 is 19409843.

34890491 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 is an emirp because it is prime and its reverse (19409843) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34890491 - 2¹⁰ = 34889467 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34890421) 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, 17445245 + 17445246.

It is an arithmetic number, because the mean of its divisors is an integer number (17445246).

Almost surely, 2^34890491 is an apocalyptic number.

34890491 is a deficient number, since it is larger than the sum of its proper divisors (1).

34890491 is an equidigital number, since it uses as much as digits as its factorization.

34890491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 34890491 is about 5906.8173325404. The cubic root of 34890491 is about 326.7651210711.

The spelling of 34890491 in words is "thirty-four million, eight hundred ninety thousand, four hundred ninety-one".