85686716 has 6 divisors (see below), whose sum is σ = 149951760. Its totient is φ = 42843356.

The previous prime is 85686701. The next prime is 85686719. The reversal of 85686716 is 61768658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85686719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10710836 + ... + 10710843.

It is an arithmetic number, because the mean of its divisors is an integer number (24991960).

Almost surely, 2^85686716 is an apocalyptic number.

It is an amenable number.

85686716 is a deficient number, since it is larger than the sum of its proper divisors (64265044).

85686716 is a wasteful number, since it uses less digits than its factorization.

85686716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21421683 (or 21421681 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 85686716 is about 9256.7119432334. The cubic root of 85686716 is about 440.8638607065.

The spelling of 85686716 in words is "eighty-five million, six hundred eighty-six thousand, seven hundred sixteen".