3985500 has 48 divisors (see below), whose sum is σ = 11610144. Its totient is φ = 1062400.

The previous prime is 3985469. The next prime is 3985511. The reversal of 3985500 is 55893.

3985500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 172 + ... + 2828.

It is an arithmetic number, because the mean of its divisors is an integer number (241878).

Almost surely, 2^3985500 is an apocalyptic number.

3985500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3985500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5805072).

3985500 is an abundant number, since it is smaller than the sum of its proper divisors (7624644).

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

3985500 is a wasteful number, since it uses less digits than its factorization.

3985500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679 (or 2667 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 3985500 is about 1996.3717088759. The cubic root of 3985500 is about 158.5480619969.

The spelling of 3985500 in words is "three million, nine hundred eighty-five thousand, five hundred".