85171037 has 16 divisors (see below), whose sum is σ = 104042880. Its totient is φ = 68057088.

The previous prime is 85171033. The next prime is 85171039. The reversal of 85171037 is 73017158.

It is a cyclic number.

It is not a de Polignac number, because 85171037 - 2² = 85171033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85170994 and 85171012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85171033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9389 + ... + 16077.

It is an arithmetic number, because the mean of its divisors is an integer number (6502680).

Almost surely, 2^85171037 is an apocalyptic number.

It is an amenable number.

85171037 is a deficient number, since it is larger than the sum of its proper divisors (18871843).

85171037 is a wasteful number, since it uses less digits than its factorization.

85171037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 85171037 is about 9228.8155794771. The cubic root of 85171037 is about 439.9776796529.

The spelling of 85171037 in words is "eighty-five million, one hundred seventy-one thousand, thirty-seven".