3708661 has 8 divisors (see below), whose sum is σ = 4065984. Its totient is φ = 3354720.

The previous prime is 3708643. The next prime is 3708673. The reversal of 3708661 is 1668073.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3708661 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 (3708611) 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 7 ways as a sum of consecutive naturals, for example, 1840 + ... + 3286.

It is an arithmetic number, because the mean of its divisors is an integer number (508248).

Almost surely, 2^3708661 is an apocalyptic number.

It is an amenable number.

3708661 is a deficient number, since it is larger than the sum of its proper divisors (357323).

3708661 is a wasteful number, since it uses less digits than its factorization.

3708661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 3708661 is about 1925.7884099765. The cubic root of 3708661 is about 154.7886262055.

The spelling of 3708661 in words is "three million, seven hundred eight thousand, six hundred sixty-one".