85331320 has 32 divisors (see below), whose sum is σ = 196084800. Its totient is φ = 33405568.

The previous prime is 85331303. The next prime is 85331327. The reversal of 85331320 is 2313358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85331327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20815 + ... + 24574.

It is an arithmetic number, because the mean of its divisors is an integer number (6127650).

Almost surely, 2^85331320 is an apocalyptic number.

It is an amenable number.

85331320 is an abundant number, since it is smaller than the sum of its proper divisors (110753480).

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

85331320 is a wasteful number, since it uses less digits than its factorization.

85331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45447 (or 45443 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 85331320 is about 9237.4953315279. The cubic root of 85331320 is about 440.2535040545.

Adding to 85331320 its reverse (2313358), we get a palindrome (87644678).

The spelling of 85331320 in words is "eighty-five million, three hundred thirty-one thousand, three hundred twenty".