3721804 has 12 divisors (see below), whose sum is σ = 6526800. Its totient is φ = 1857008.

The previous prime is 3721799. The next prime is 3721807. The reversal of 3721804 is 4081273.

It is a super-3 number, since 3×3721804³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3721807) 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, 2802 + ... + 3910.

It is an arithmetic number, because the mean of its divisors is an integer number (543900).

Almost surely, 2^3721804 is an apocalyptic number.

It is an amenable number.

3721804 is a deficient number, since it is larger than the sum of its proper divisors (2804996).

3721804 is a wasteful number, since it uses less digits than its factorization.

3721804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 3721804 is about 1929.1977607285. The cubic root of 3721804 is about 154.9712607140.

The spelling of 3721804 in words is "three million, seven hundred twenty-one thousand, eight hundred four".