34210861 has 2 divisors, whose sum is σ = 34210862. Its totient is φ = 34210860.

The previous prime is 34210859. The next prime is 34210873. The reversal of 34210861 is 16801243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22610025 + 11600836 = 4755^2 + 3406^2 .

It is an emirp because it is prime and its reverse (16801243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34210861 - 2¹ = 34210859 is a prime.

It is a super-2 number, since 2×34210861² = 2340766020722642, which contains 22 as substring.

Together with 34210859, 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 (34210261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17105430 + 17105431.

It is an arithmetic number, because the mean of its divisors is an integer number (17105431).

Almost surely, 2^34210861 is an apocalyptic number.

It is an amenable number.

34210861 is a deficient number, since it is larger than the sum of its proper divisors (1).

34210861 is an equidigital number, since it uses as much as digits as its factorization.

34210861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 34210861 is about 5849.0051290796. The cubic root of 34210861 is about 324.6295139169.

The spelling of 34210861 in words is "thirty-four million, two hundred ten thousand, eight hundred sixty-one".