85986807 has 4 divisors (see below), whose sum is σ = 114649080. Its totient is φ = 57324536.

The previous prime is 85986781. The next prime is 85986809. The reversal of 85986807 is 70868958.

It is a happy number.

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 85986807 - 2⁷ = 85986679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85986807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85986809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14331132 + ... + 14331137.

It is an arithmetic number, because the mean of its divisors is an integer number (28662270).

Almost surely, 2^85986807 is an apocalyptic number.

85986807 is a deficient number, since it is larger than the sum of its proper divisors (28662273).

85986807 is a wasteful number, since it uses less digits than its factorization.

85986807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28662272.

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 85986807 is about 9272.9071493249. The cubic root of 85986807 is about 441.3779237847.

The spelling of 85986807 in words is "eighty-five million, nine hundred eighty-six thousand, eight hundred seven".