85226917 has 2 divisors, whose sum is σ = 85226918. Its totient is φ = 85226916.

The previous prime is 85226887. The next prime is 85226929. The reversal of 85226917 is 71962258.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84658401 + 568516 = 9201^2 + 754^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85226917 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85226917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85226417) 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, 42613458 + 42613459.

It is an arithmetic number, because the mean of its divisors is an integer number (42613459).

Almost surely, 2^85226917 is an apocalyptic number.

It is an amenable number.

85226917 is a deficient number, since it is larger than the sum of its proper divisors (1).

85226917 is an equidigital number, since it uses as much as digits as its factorization.

85226917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 85226917 is about 9231.8425571497. The cubic root of 85226917 is about 440.0738805004.

The spelling of 85226917 in words is "eighty-five million, two hundred twenty-six thousand, nine hundred seventeen".