3860661 has 12 divisors (see below), whose sum is σ = 5988192. Its totient is φ = 2206008.

The previous prime is 3860657. The next prime is 3860663. The reversal of 3860661 is 1660683.

It is not a de Polignac number, because 3860661 - 2² = 3860657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3860663) 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, 12985 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (499016).

Almost surely, 2^3860661 is an apocalyptic number.

It is an amenable number.

3860661 is a deficient number, since it is larger than the sum of its proper divisors (2127531).

3860661 is a wasteful number, since it uses less digits than its factorization.

3860661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26280 (or 26273 counting only the distinct ones).

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

The square root of 3860661 is about 1964.8564833086. The cubic root of 3860661 is about 156.8750544171.

The spelling of 3860661 in words is "three million, eight hundred sixty thousand, six hundred sixty-one".