85727713 has 4 divisors (see below), whose sum is σ = 85760020. Its totient is φ = 85695408.

The previous prime is 85727687. The next prime is 85727717. The reversal of 85727713 is 31772758.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64272289 + 21455424 = 8017^2 + 4632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85727713 is a prime.

It is a Duffinian number.

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (85727717) 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, 11778 + ... + 17611.

It is an arithmetic number, because the mean of its divisors is an integer number (21440005).

Almost surely, 2^85727713 is an apocalyptic number.

It is an amenable number.

85727713 is a deficient number, since it is larger than the sum of its proper divisors (32307).

85727713 is a wasteful number, since it uses less digits than its factorization.

85727713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32306.

The product of its digits is 82320, while the sum is 40.

The square root of 85727713 is about 9258.9261256368. The cubic root of 85727713 is about 440.9341602612.

The spelling of 85727713 in words is "eighty-five million, seven hundred twenty-seven thousand, seven hundred thirteen".