3721443 has 8 divisors (see below), whose sum is σ = 5413056. Its totient is φ = 2255400.

The previous prime is 3721439. The next prime is 3721451. The reversal of 3721443 is 3441273.

3721443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3721443 - 2² = 3721439 is a prime.

It is a super-3 number, since 3×3721443³ (a number of 21 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56353 + ... + 56418.

It is an arithmetic number, because the mean of its divisors is an integer number (676632).

Almost surely, 2^3721443 is an apocalyptic number.

3721443 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3721443 is a deficient number, since it is larger than the sum of its proper divisors (1691613).

3721443 is a wasteful number, since it uses less digits than its factorization.

3721443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112785.

The product of its digits is 2016, while the sum is 24.

The square root of 3721443 is about 1929.1041962528. The cubic root of 3721443 is about 154.9662500225.

The spelling of 3721443 in words is "three million, seven hundred twenty-one thousand, four hundred forty-three".