85986037 has 2 divisors, whose sum is σ = 85986038. Its totient is φ = 85986036.

The previous prime is 85986023. The next prime is 85986053. The reversal of 85986037 is 73068958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85951441 + 34596 = 9271^2 + 186^2 .

It is a cyclic number.

It is not a de Polignac number, because 85986037 - 2¹⁵ = 85953269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85986007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42993018 + 42993019.

It is an arithmetic number, because the mean of its divisors is an integer number (42993019).

Almost surely, 2^85986037 is an apocalyptic number.

It is an amenable number.

85986037 is a deficient number, since it is larger than the sum of its proper divisors (1).

85986037 is an equidigital number, since it uses as much as digits as its factorization.

85986037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 85986037 is about 9272.8656304295. The cubic root of 85986037 is about 441.3766062879.

The spelling of 85986037 in words is "eighty-five million, nine hundred eighty-six thousand, thirty-seven".