85537788 has 48 divisors (see below), whose sum is σ = 229065984. Its totient is φ = 24336000.

The previous prime is 85537783. The next prime is 85537789. The reversal of 85537788 is 88773558.

It is a self number, because there is not a number n which added to its sum of digits gives 85537788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85537783) 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, 19056 + ... + 23112.

It is an arithmetic number, because the mean of its divisors is an integer number (4772208).

Almost surely, 2^85537788 is an apocalyptic number.

It is an amenable number.

85537788 is an abundant number, since it is smaller than the sum of its proper divisors (143528196).

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

85537788 is a wasteful number, since it uses less digits than its factorization.

85537788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322 (or 4320 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 51.

The square root of 85537788 is about 9248.6641197526. The cubic root of 85537788 is about 440.6082977623.

The spelling of 85537788 in words is "eighty-five million, five hundred thirty-seven thousand, seven hundred eighty-eight".