85122837 has 6 divisors (see below), whose sum is σ = 122955222. Its totient is φ = 56748552.

The previous prime is 85122833. The next prime is 85122853. The reversal of 85122837 is 73822158.

It can be written as a sum of positive squares in only one way, i.e., 54552996 + 30569841 = 7386^2 + 5529^2 .

It is not a de Polignac number, because 85122837 - 2² = 85122833 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85122833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4729038 + ... + 4729055.

It is an arithmetic number, because the mean of its divisors is an integer number (20492537).

Almost surely, 2^85122837 is an apocalyptic number.

It is an amenable number.

85122837 is a deficient number, since it is larger than the sum of its proper divisors (37832385).

85122837 is a wasteful number, since it uses less digits than its factorization.

85122837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9458099 (or 9458096 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 85122837 is about 9226.2038238920. The cubic root of 85122837 is about 439.8946665902.

The spelling of 85122837 in words is "eighty-five million, one hundred twenty-two thousand, eight hundred thirty-seven".