85687393 has 8 divisors (see below), whose sum is σ = 93704256. Its totient is φ = 77708400.

The previous prime is 85687339. The next prime is 85687403. The reversal of 85687393 is 39378658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-85687393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85687333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4621 + ... + 13882.

It is an arithmetic number, because the mean of its divisors is an integer number (11713032).

Almost surely, 2^85687393 is an apocalyptic number.

It is an amenable number.

85687393 is a deficient number, since it is larger than the sum of its proper divisors (8016863).

85687393 is a wasteful number, since it uses less digits than its factorization.

85687393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18935.

The product of its digits is 1088640, while the sum is 49.

The square root of 85687393 is about 9256.7485112214. The cubic root of 85687393 is about 440.8650217734.

The spelling of 85687393 in words is "eighty-five million, six hundred eighty-seven thousand, three hundred ninety-three".