3523986 has 28 divisors (see below), whose sum is σ = 7928622. Its totient is φ = 1174176.

The previous prime is 3523969. The next prime is 3523997. The reversal of 3523986 is 6893253.

3523986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2047761 + 1476225 = 1431^2 + 1215^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3523986.

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 13 ways as a sum of consecutive naturals, for example, 250 + ... + 2666.

Almost surely, 2^3523986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3523986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3964311).

3523986 is an abundant number, since it is smaller than the sum of its proper divisors (4404636).

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

3523986 is an equidigital number, since it uses as much as digits as its factorization.

3523986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437 (or 2422 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 3523986 is about 1877.2282759430. The cubic root of 3523986 is about 152.1754955908.

The spelling of 3523986 in words is "three million, five hundred twenty-three thousand, nine hundred eighty-six".