85308828 has 48 divisors (see below), whose sum is σ = 223031424. Its totient is φ = 25151040.

The previous prime is 85308827. The next prime is 85308829. The reversal of 85308828 is 82880358.

It is an interprime number because it is at equal distance from previous prime (85308827) and next prime (85308829).

It is a super-2 number, since 2×85308828² = 14555192269467168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 85308828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85308827) 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, 3850 + ... + 13617.

It is an arithmetic number, because the mean of its divisors is an integer number (4646488).

Almost surely, 2^85308828 is an apocalyptic number.

It is an amenable number.

85308828 is an abundant number, since it is smaller than the sum of its proper divisors (137722596).

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

85308828 is a wasteful number, since it uses less digits than its factorization.

85308828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17522 (or 17520 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 85308828 is about 9236.2778217202. The cubic root of 85308828 is about 440.2148193450.

The spelling of 85308828 in words is "eighty-five million, three hundred eight thousand, eight hundred twenty-eight".