3721667684 has 24 divisors (see below), whose sum is σ = 7462791168. Its totient is φ = 1590831360.

The previous prime is 3721667639. The next prime is 3721667713. The reversal of 3721667684 is 4867661273.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162797 + ... + 184244.

It is an arithmetic number, because the mean of its divisors is an integer number (310949632).

Almost surely, 2^3721667684 is an apocalyptic number.

It is an amenable number.

3721667684 is an abundant number, since it is smaller than the sum of its proper divisors (3741123484).

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

3721667684 is a wasteful number, since it uses less digits than its factorization.

3721667684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347435 (or 347433 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 50.

The square root of 3721667684 is about 61005.4725741880. The cubic root of 3721667684 is about 1549.6936868165.

The spelling of 3721667684 in words is "three billion, seven hundred twenty-one million, six hundred sixty-seven thousand, six hundred eighty-four".