3611660 has 48 divisors (see below), whose sum is σ = 8467200. Its totient is φ = 1284864.

The previous prime is 3611623. The next prime is 3611669. The reversal of 3611660 is 661163.

It is not an unprimeable number, because it can be changed into a prime (3611669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7301 + ... + 7779.

It is an arithmetic number, because the mean of its divisors is an integer number (176400).

Almost surely, 2^3611660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3611660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4233600).

3611660 is an abundant number, since it is smaller than the sum of its proper divisors (4855540).

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

3611660 is a wasteful number, since it uses less digits than its factorization.

3611660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 3611660 is about 1900.4367918981. The cubic root of 3611660 is about 153.4271742311.

The spelling of 3611660 in words is "three million, six hundred eleven thousand, six hundred sixty".