3711921 has 8 divisors (see below), whose sum is σ = 4962720. Its totient is φ = 2467872.

The previous prime is 3711907. The next prime is 3711941. The reversal of 3711921 is 1291173.

3711921 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 3711921 - 2⁶ = 3711857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3711891 and 3711900.

It is not an unprimeable number, because it can be changed into a prime (3711941) 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, 220 + ... + 2733.

It is an arithmetic number, because the mean of its divisors is an integer number (620340).

Almost surely, 2^3711921 is an apocalyptic number.

It is an amenable number.

3711921 is a deficient number, since it is larger than the sum of its proper divisors (1250799).

3711921 is a wasteful number, since it uses less digits than its factorization.

3711921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375.

The product of its digits is 378, while the sum is 24.

The square root of 3711921 is about 1926.6346306448. The cubic root of 3711921 is about 154.8339672005.

The spelling of 3711921 in words is "three million, seven hundred eleven thousand, nine hundred twenty-one".