3804661 has 16 divisors (see below), whose sum is σ = 4561920. Its totient is φ = 3104640.

The previous prime is 3804659. The next prime is 3804701. The reversal of 3804661 is 1664083.

3804661 is a nontrivial binomial coefficient, being equal to C(2759, 2).

It is not a de Polignac number, because 3804661 - 2¹ = 3804659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3804611) 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 15 ways as a sum of consecutive naturals, for example, 19215 + ... + 19411.

It is an arithmetic number, because the mean of its divisors is an integer number (285120).

Almost surely, 2^3804661 is an apocalyptic number.

3804661 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3804661 is the 2758-th triangular number.

3804661 is the 920-th centered nonagonal number.

It is an amenable number.

3804661 is a deficient number, since it is larger than the sum of its proper divisors (757259).

3804661 is a wasteful number, since it uses less digits than its factorization.

3804661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 3804661 is about 1950.5540238609. The cubic root of 3804661 is about 156.1128511725.

It can be divided in two parts, 3804 and 661, that added together give a triangular number (4465 = T₉₄).

The spelling of 3804661 in words is "three million, eight hundred four thousand, six hundred sixty-one".