85917667 has 4 divisors (see below), whose sum is σ = 93728376. Its totient is φ = 78106960.

The previous prime is 85917649. The next prime is 85917679. The reversal of 85917667 is 76671958.

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 85917667 - 2⁷ = 85917539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85917667.

It is not an unprimeable number, because it can be changed into a prime (85917607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3905338 + ... + 3905359.

It is an arithmetic number, because the mean of its divisors is an integer number (23432094).

Almost surely, 2^85917667 is an apocalyptic number.

85917667 is a deficient number, since it is larger than the sum of its proper divisors (7810709).

85917667 is a wasteful number, since it uses less digits than its factorization.

85917667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810708.

The product of its digits is 635040, while the sum is 49.

The square root of 85917667 is about 9269.1783346745. The cubic root of 85917667 is about 441.2595914743.

The spelling of 85917667 in words is "eighty-five million, nine hundred seventeen thousand, six hundred sixty-seven".