3720916 has 6 divisors (see below), whose sum is σ = 6511610. Its totient is φ = 1860456.

The previous prime is 3720911. The next prime is 3720923. The reversal of 3720916 is 6190273.

3720916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3048516 + 672400 = 1746^2 + 820^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720911) 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 as a sum of consecutive naturals, namely, 465111 + ... + 465118.

Almost surely, 2^3720916 is an apocalyptic number.

It is an amenable number.

3720916 is a deficient number, since it is larger than the sum of its proper divisors (2790694).

3720916 is a wasteful number, since it uses less digits than its factorization.

3720916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930233 (or 930231 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 3720916 is about 1928.9675995205. The cubic root of 3720916 is about 154.9589346640.

The spelling of 3720916 in words is "three million, seven hundred twenty thousand, nine hundred sixteen".