3661086 has 64 divisors (see below), whose sum is σ = 9144576. Its totient is φ = 960000.

The previous prime is 3661043. The next prime is 3661093. The reversal of 3661086 is 6801663.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14461 + ... + 14711.

It is an arithmetic number, because the mean of its divisors is an integer number (142884).

Almost surely, 2^3661086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3661086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4572288).

3661086 is an abundant number, since it is smaller than the sum of its proper divisors (5483490).

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

3661086 is a wasteful number, since it uses less digits than its factorization.

3661086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 3661086 is about 1913.3964565662. The cubic root of 3661086 is about 154.1238953501.

The spelling of 3661086 in words is "three million, six hundred sixty-one thousand, eighty-six".