85715727 has 16 divisors (see below), whose sum is σ = 117266688. Its totient is φ = 55661760.

The previous prime is 85715723. The next prime is 85715737. The reversal of 85715727 is 72751758.

It is not a de Polignac number, because 85715727 - 2² = 85715723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85715723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64227 + ... + 65547.

It is an arithmetic number, because the mean of its divisors is an integer number (7329168).

Almost surely, 2^85715727 is an apocalyptic number.

85715727 is a deficient number, since it is larger than the sum of its proper divisors (31550961).

85715727 is a wasteful number, since it uses less digits than its factorization.

85715727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870.

The product of its digits is 137200, while the sum is 42.

The square root of 85715727 is about 9258.2788357232. The cubic root of 85715727 is about 440.9136096014.

The spelling of 85715727 in words is "eighty-five million, seven hundred fifteen thousand, seven hundred twenty-seven".