3721912 has 16 divisors (see below), whose sum is σ = 7389360. Its totient is φ = 1751424.

The previous prime is 3721901. The next prime is 3721919. The reversal of 3721912 is 2191273.

3721912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721919) 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 3 ways as a sum of consecutive naturals, for example, 13548 + ... + 13819.

It is an arithmetic number, because the mean of its divisors is an integer number (461835).

Almost surely, 2^3721912 is an apocalyptic number.

It is an amenable number.

3721912 is a deficient number, since it is larger than the sum of its proper divisors (3667448).

3721912 is a wasteful number, since it uses less digits than its factorization.

3721912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27390 (or 27386 counting only the distinct ones).

The product of its digits is 756, while the sum is 25.

The square root of 3721912 is about 1929.2257514350. The cubic root of 3721912 is about 154.9727596944.

The spelling of 3721912 in words is "three million, seven hundred twenty-one thousand, nine hundred twelve".