85170667 has 4 divisors (see below), whose sum is σ = 85367800. Its totient is φ = 84973536.

The previous prime is 85170661. The next prime is 85170691. The reversal of 85170667 is 76607158.

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 85170667 - 2⁷ = 85170539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85170661) 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, 97917 + ... + 98782.

It is an arithmetic number, because the mean of its divisors is an integer number (21341950).

Almost surely, 2^85170667 is an apocalyptic number.

85170667 is a deficient number, since it is larger than the sum of its proper divisors (197133).

85170667 is a wasteful number, since it uses less digits than its factorization.

85170667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197132.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 85170667 is about 9228.7955335461. The cubic root of 85170667 is about 439.9770425350.

The spelling of 85170667 in words is "eighty-five million, one hundred seventy thousand, six hundred sixty-seven".