85791827 has 4 divisors (see below), whose sum is σ = 93591096. Its totient is φ = 77992560.

The previous prime is 85791791. The next prime is 85791833. The reversal of 85791827 is 72819758.

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 85791827 - 2¹⁸ = 85529683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85791857) 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, 3899618 + ... + 3899639.

It is an arithmetic number, because the mean of its divisors is an integer number (23397774).

Almost surely, 2^85791827 is an apocalyptic number.

85791827 is a deficient number, since it is larger than the sum of its proper divisors (7799269).

85791827 is a wasteful number, since it uses less digits than its factorization.

85791827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7799268.

The product of its digits is 282240, while the sum is 47.

The square root of 85791827 is about 9262.3877591040. The cubic root of 85791827 is about 441.0440547444.

The spelling of 85791827 in words is "eighty-five million, seven hundred ninety-one thousand, eight hundred twenty-seven".