3721982 has 8 divisors (see below), whose sum is σ = 6090552. Its totient is φ = 1691800.

The previous prime is 3721981. The next prime is 3722009. The reversal of 3721982 is 2891273.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721981) 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, 84569 + ... + 84612.

It is an arithmetic number, because the mean of its divisors is an integer number (761319).

Almost surely, 2^3721982 is an apocalyptic number.

3721982 is a deficient number, since it is larger than the sum of its proper divisors (2368570).

3721982 is a wasteful number, since it uses less digits than its factorization.

3721982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169194.

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

The square root of 3721982 is about 1929.2438933427. The cubic root of 3721982 is about 154.9737312403.

The spelling of 3721982 in words is "three million, seven hundred twenty-one thousand, nine hundred eighty-two".