85017767 has 4 divisors (see below), whose sum is σ = 85215456. Its totient is φ = 84820080.

The previous prime is 85017733. The next prime is 85017781. The reversal of 85017767 is 76771058.

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

It is a cyclic number.

It is not a de Polignac number, because 85017767 - 2⁸ = 85017511 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 (85017727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98198 + ... + 99059.

It is an arithmetic number, because the mean of its divisors is an integer number (21303864).

Almost surely, 2^85017767 is an apocalyptic number.

85017767 is a deficient number, since it is larger than the sum of its proper divisors (197689).

85017767 is a wasteful number, since it uses less digits than its factorization.

85017767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197688.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 85017767 is about 9220.5079578080. The cubic root of 85017767 is about 439.7135997768.

The spelling of 85017767 in words is "eighty-five million, seventeen thousand, seven hundred sixty-seven".