85868177 has 4 divisors (see below), whose sum is σ = 89601600. Its totient is φ = 82134756.

The previous prime is 85868147. The next prime is 85868191. The reversal of 85868177 is 77186858.

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 a cyclic number.

It is not a de Polignac number, because 85868177 - 2⁸ = 85867921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85868117) 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, 1866677 + ... + 1866722.

It is an arithmetic number, because the mean of its divisors is an integer number (22400400).

Almost surely, 2^85868177 is an apocalyptic number.

It is an amenable number.

85868177 is a deficient number, since it is larger than the sum of its proper divisors (3733423).

85868177 is a wasteful number, since it uses less digits than its factorization.

85868177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733422.

The product of its digits is 752640, while the sum is 50.

The square root of 85868177 is about 9266.5083499666. The cubic root of 85868177 is about 441.1748509225.

The spelling of 85868177 in words is "eighty-five million, eight hundred sixty-eight thousand, one hundred seventy-seven".