85116849 has 4 divisors (see below), whose sum is σ = 113489136. Its totient is φ = 56744564.

The previous prime is 85116847. The next prime is 85116851. The reversal of 85116849 is 94861158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (85116847) and next prime (85116851).

It is a cyclic number.

It is not a de Polignac number, because 85116849 - 2¹ = 85116847 is a prime.

It is a super-4 number, since 4×85116849⁴ (a number of 33 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85116849.

It is not an unprimeable number, because it can be changed into a prime (85116847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14186139 + ... + 14186144.

It is an arithmetic number, because the mean of its divisors is an integer number (28372284).

Almost surely, 2^85116849 is an apocalyptic number.

It is an amenable number.

85116849 is a deficient number, since it is larger than the sum of its proper divisors (28372287).

85116849 is a wasteful number, since it uses less digits than its factorization.

85116849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28372286.

The product of its digits is 69120, while the sum is 42.

The square root of 85116849 is about 9225.8793076866. The cubic root of 85116849 is about 439.8843514929.

The spelling of 85116849 in words is "eighty-five million, one hundred sixteen thousand, eight hundred forty-nine".