85616728 has 16 divisors (see below), whose sum is σ = 161518680. Its totient is φ = 42545088.

The previous prime is 85616719. The next prime is 85616749. The reversal of 85616728 is 82761658.

It is a super-2 number, since 2×85616728² = 14660448226851968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31525 + ... + 34132.

Almost surely, 2^85616728 is an apocalyptic number.

It is an amenable number.

85616728 is a deficient number, since it is larger than the sum of its proper divisors (75901952).

85616728 is a wasteful number, since it uses less digits than its factorization.

85616728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65826 (or 65822 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 85616728 is about 9252.9307789478. The cubic root of 85616728 is about 440.7437970378.

The spelling of 85616728 in words is "eighty-five million, six hundred sixteen thousand, seven hundred twenty-eight".