85785927 has 16 divisors (see below), whose sum is σ = 122365152. Its totient is φ = 53268480.

The previous prime is 85785923. The next prime is 85785937. The reversal of 85785927 is 72958758.

It is not a de Polignac number, because 85785927 - 2² = 85785923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 85785927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85785923) 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, 3724 + ... + 13617.

It is an arithmetic number, because the mean of its divisors is an integer number (7647822).

Almost surely, 2^85785927 is an apocalyptic number.

85785927 is a deficient number, since it is larger than the sum of its proper divisors (36579225).

85785927 is a wasteful number, since it uses less digits than its factorization.

85785927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17458.

The product of its digits is 1411200, while the sum is 51.

The square root of 85785927 is about 9262.0692612396. The cubic root of 85785927 is about 441.0339441481.

The spelling of 85785927 in words is "eighty-five million, seven hundred eighty-five thousand, nine hundred twenty-seven".