3681671 has 4 divisors (see below), whose sum is σ = 4207632. Its totient is φ = 3155712.

The previous prime is 3681619. The next prime is 3681683. The reversal of 3681671 is 1761863.

3681671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3681671 - 2¹⁰ = 3680647 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 (3681371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262970 + ... + 262983.

It is an arithmetic number, because the mean of its divisors is an integer number (1051908).

Almost surely, 2^3681671 is an apocalyptic number.

3681671 is a deficient number, since it is larger than the sum of its proper divisors (525961).

3681671 is an equidigital number, since it uses as much as digits as its factorization.

3681671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525960.

The product of its digits is 6048, while the sum is 32.

The square root of 3681671 is about 1918.7680943772. The cubic root of 3681671 is about 154.4122171465.

The spelling of 3681671 in words is "three million, six hundred eighty-one thousand, six hundred seventy-one".