85022117 has 4 divisors (see below), whose sum is σ = 90023436. Its totient is φ = 80020800.

The previous prime is 85022089. The next prime is 85022141. The reversal of 85022117 is 71122058.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75498721 + 9523396 = 8689^2 + 3086^2 .

It is a cyclic number.

It is not a de Polignac number, because 85022117 - 2¹⁴ = 85005733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85022167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500634 + ... + 2500667.

It is an arithmetic number, because the mean of its divisors is an integer number (22505859).

Almost surely, 2^85022117 is an apocalyptic number.

It is an amenable number.

85022117 is a deficient number, since it is larger than the sum of its proper divisors (5001319).

85022117 is a wasteful number, since it uses less digits than its factorization.

85022117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001318.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 85022117 is about 9220.7438420119. The cubic root of 85022117 is about 439.7210990781.

The spelling of 85022117 in words is "eighty-five million, twenty-two thousand, one hundred seventeen".