83086261 has 2 divisors, whose sum is σ = 83086262. Its totient is φ = 83086260.

The previous prime is 83086243. The next prime is 83086273. The reversal of 83086261 is 16268038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82719025 + 367236 = 9095^2 + 606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83086261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83086291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41543130 + 41543131.

It is an arithmetic number, because the mean of its divisors is an integer number (41543131).

Almost surely, 2^83086261 is an apocalyptic number.

It is an amenable number.

83086261 is a deficient number, since it is larger than the sum of its proper divisors (1).

83086261 is an equidigital number, since it uses as much as digits as its factorization.

83086261 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 34.

The square root of 83086261 is about 9115.1665371511. The cubic root of 83086261 is about 436.3581299166.

The spelling of 83086261 in words is "eighty-three million, eighty-six thousand, two hundred sixty-one".