85817328 has 20 divisors (see below), whose sum is σ = 221694888. Its totient is φ = 28605760.

The previous prime is 85817323. The next prime is 85817339. The reversal of 85817328 is 82371858.

It is a happy number.

It is a super-2 number, since 2×85817328² = 14729227570119168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85817328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85817323) 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, 893883 + ... + 893978.

Almost surely, 2^85817328 is an apocalyptic number.

It is an amenable number.

85817328 is an abundant number, since it is smaller than the sum of its proper divisors (135877560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85817328 is a wasteful number, since it uses less digits than its factorization.

85817328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787872 (or 1787866 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 85817328 is about 9263.7642457049. The cubic root of 85817328 is about 441.0877494670.

The spelling of 85817328 in words is "eighty-five million, eight hundred seventeen thousand, three hundred twenty-eight".