3720626 has 16 divisors (see below), whose sum is σ = 6869184. Its totient is φ = 1471824.

The previous prime is 3720623. The next prime is 3720649. The reversal of 3720626 is 6260273.

3720626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 3720595 and 3720604.

It is not an unprimeable number, because it can be changed into a prime (3720623) 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, 10040 + ... + 10403.

It is an arithmetic number, because the mean of its divisors is an integer number (429324).

Almost surely, 2^3720626 is an apocalyptic number.

3720626 is a deficient number, since it is larger than the sum of its proper divisors (3148558).

3720626 is a wasteful number, since it uses less digits than its factorization.

3720626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20465.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 3720626 is about 1928.8924283122. The cubic root of 3720626 is about 154.9549088401.

Adding to 3720626 its reverse (6260273), we get a palindrome (9980899).

The spelling of 3720626 in words is "three million, seven hundred twenty thousand, six hundred twenty-six".