85855924 has 24 divisors (see below), whose sum is σ = 187322688. Its totient is φ = 33450240.

The previous prime is 85855909. The next prime is 85855943. The reversal of 85855924 is 42955858.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139069 + ... + 139684.

It is an arithmetic number, because the mean of its divisors is an integer number (7805112).

Almost surely, 2^85855924 is an apocalyptic number.

It is an amenable number.

85855924 is an abundant number, since it is smaller than the sum of its proper divisors (101466764).

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

85855924 is a wasteful number, since it uses less digits than its factorization.

85855924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278775 (or 278773 counting only the distinct ones).

The product of its digits is 576000, while the sum is 46.

The square root of 85855924 is about 9265.8471819904. The cubic root of 85855924 is about 441.1538653732.

The spelling of 85855924 in words is "eighty-five million, eight hundred fifty-five thousand, nine hundred twenty-four".