85122917 has 16 divisors (see below), whose sum is σ = 96465600. Its totient is φ = 74403840.

The previous prime is 85122911. The next prime is 85122923. The reversal of 85122917 is 71922158.

It is an interprime number because it is at equal distance from previous prime (85122911) and next prime (85122923).

It is a cyclic number.

It is not a de Polignac number, because 85122917 - 2⁶ = 85122853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85122911) 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, 110309 + ... + 111077.

It is an arithmetic number, because the mean of its divisors is an integer number (6029100).

Almost surely, 2^85122917 is an apocalyptic number.

It is an amenable number.

85122917 is a deficient number, since it is larger than the sum of its proper divisors (11342683).

85122917 is a wasteful number, since it uses less digits than its factorization.

85122917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its digits is 10080, while the sum is 35.

The square root of 85122917 is about 9226.2081593686. The cubic root of 85122917 is about 439.8948043972.

The spelling of 85122917 in words is "eighty-five million, one hundred twenty-two thousand, nine hundred seventeen".