85817484 has 36 divisors (see below), whose sum is σ = 220489360. Its totient is φ = 28136160.

The previous prime is 85817483. The next prime is 85817489. The reversal of 85817484 is 48471858.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (85817483) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 17344 + ... + 21735.

Almost surely, 2^85817484 is an apocalyptic number.

It is an amenable number.

85817484 is an abundant number, since it is smaller than the sum of its proper divisors (134671876).

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

85817484 is a wasteful number, since it uses less digits than its factorization.

85817484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39150 (or 39145 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 85817484 is about 9263.7726656044. The cubic root of 85817484 is about 441.0880167388.

The spelling of 85817484 in words is "eighty-five million, eight hundred seventeen thousand, four hundred eighty-four".