85286837 has 2 divisors, whose sum is σ = 85286838. Its totient is φ = 85286836.

The previous prime is 85286827. The next prime is 85286843. The reversal of 85286837 is 73868258.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51251281 + 34035556 = 7159^2 + 5834^2 .

It is a cyclic number.

It is not a de Polignac number, because 85286837 - 2⁴ = 85286821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85286791 and 85286800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85286827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42643418 + 42643419.

It is an arithmetic number, because the mean of its divisors is an integer number (42643419).

Almost surely, 2^85286837 is an apocalyptic number.

It is an amenable number.

85286837 is a deficient number, since it is larger than the sum of its proper divisors (1).

85286837 is an equidigital number, since it uses as much as digits as its factorization.

85286837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 47.

The square root of 85286837 is about 9235.0872762525. The cubic root of 85286837 is about 440.1769897468.

The spelling of 85286837 in words is "eighty-five million, two hundred eighty-six thousand, eight hundred thirty-seven".