3666872 has 16 divisors (see below), whose sum is σ = 7500600. Its totient is φ = 1666720.

The previous prime is 3666853. The next prime is 3666877. The reversal of 3666872 is 2786663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20747 + ... + 20922.

Almost surely, 2^3666872 is an apocalyptic number.

It is an amenable number.

3666872 is an abundant number, since it is smaller than the sum of its proper divisors (3833728).

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

3666872 is a wasteful number, since it uses less digits than its factorization.

3666872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41686 (or 41682 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 3666872 is about 1914.9078306801. The cubic root of 3666872 is about 154.2050453595.

It can be divided in two parts, 366 and 6872, that multiplied together give a palindrome (2515152).

The spelling of 3666872 in words is "three million, six hundred sixty-six thousand, eight hundred seventy-two".