85826261 has 2 divisors, whose sum is σ = 85826262. Its totient is φ = 85826260.

The previous prime is 85826231. The next prime is 85826269. The reversal of 85826261 is 16262858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82919236 + 2907025 = 9106^2 + 1705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85826261 is a prime.

It is a super-2 number, since 2×85826261² = 14732294154480242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85826269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42913130 + 42913131.

It is an arithmetic number, because the mean of its divisors is an integer number (42913131).

Almost surely, 2^85826261 is an apocalyptic number.

It is an amenable number.

85826261 is a deficient number, since it is larger than the sum of its proper divisors (1).

85826261 is an equidigital number, since it uses as much as digits as its factorization.

85826261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 38.

The square root of 85826261 is about 9264.2463805752. The cubic root of 85826261 is about 441.1030536806.

The spelling of 85826261 in words is "eighty-five million, eight hundred twenty-six thousand, two hundred sixty-one".