85749816 has 32 divisors (see below), whose sum is σ = 217578240. Its totient is φ = 28156128.

The previous prime is 85749803. The next prime is 85749817. The reversal of 85749816 is 61894758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85749817) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25056 + ... + 28271.

It is an arithmetic number, because the mean of its divisors is an integer number (6799320).

Almost surely, 2^85749816 is an apocalyptic number.

It is an amenable number.

85749816 is an abundant number, since it is smaller than the sum of its proper divisors (131828424).

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

85749816 is a wasteful number, since it uses less digits than its factorization.

85749816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53403 (or 53399 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 85749816 is about 9260.1196536546. The cubic root of 85749816 is about 440.9720520542.

The spelling of 85749816 in words is "eighty-five million, seven hundred forty-nine thousand, eight hundred sixteen".