3686722 has 32 divisors (see below), whose sum is σ = 6652800. Its totient is φ = 1513728.

The previous prime is 3686713. The next prime is 3686723. The reversal of 3686722 is 2276863.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8179 + ... + 8617.

It is an arithmetic number, because the mean of its divisors is an integer number (207900).

Almost surely, 2^3686722 is an apocalyptic number.

3686722 is a deficient number, since it is larger than the sum of its proper divisors (2966078).

3686722 is a wasteful number, since it uses less digits than its factorization.

3686722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490.

The product of its digits is 24192, while the sum is 34.

The square root of 3686722 is about 1920.0838523356. The cubic root of 3686722 is about 154.4827992008.

The spelling of 3686722 in words is "three million, six hundred eighty-six thousand, seven hundred twenty-two".