34890281 has 2 divisors, whose sum is σ = 34890282. Its totient is φ = 34890280.

The previous prime is 34890253. The next prime is 34890301. The reversal of 34890281 is 18209843.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20106256 + 14784025 = 4484^2 + 3845^2 .

It is an emirp because it is prime and its reverse (18209843) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34890281 - 2¹⁸ = 34628137 is a prime.

It is a super-2 number, since 2×34890281² = 2434663416517922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (34892281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17445140 + 17445141.

It is an arithmetic number, because the mean of its divisors is an integer number (17445141).

Almost surely, 2^34890281 is an apocalyptic number.

It is an amenable number.

34890281 is a deficient number, since it is larger than the sum of its proper divisors (1).

34890281 is an equidigital number, since it uses as much as digits as its factorization.

34890281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 34890281 is about 5906.7995564434. The cubic root of 34890281 is about 326.7644654884.

The spelling of 34890281 in words is "thirty-four million, eight hundred ninety thousand, two hundred eighty-one".