3667646 has 8 divisors (see below), whose sum is σ = 5791080. Its totient is φ = 1737288.

The previous prime is 3667637. The next prime is 3667669. The reversal of 3667646 is 6467663.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 96517 = 3667646 / (3 + 6 + 6 + 7 + 6 + 4 + 6).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48221 + ... + 48296.

It is an arithmetic number, because the mean of its divisors is an integer number (723885).

Almost surely, 2^3667646 is an apocalyptic number.

3667646 is a deficient number, since it is larger than the sum of its proper divisors (2123434).

3667646 is a wasteful number, since it uses less digits than its factorization.

3667646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96538.

The product of its digits is 108864, while the sum is 38.

The square root of 3667646 is about 1915.1099185164. The cubic root of 3667646 is about 154.2158944163.

The spelling of 3667646 in words is "three million, six hundred sixty-seven thousand, six hundred forty-six".