3720025 has 12 divisors (see below), whose sum is σ = 4884732. Its totient is φ = 2800640.

The previous prime is 3720023. The next prime is 3720037. The reversal of 3720025 is 5200273.

It is a happy number.

3720025 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 6 ways, for example, as 170569 + 3549456 = 413^2 + 1884^2 .

It is not a de Polignac number, because 3720025 - 2¹ = 3720023 is a prime.

It is a Duffinian number.

3720025 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3719984 and 3720011.

It is not an unprimeable number, because it can be changed into a prime (3720023) 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 11 ways as a sum of consecutive naturals, for example, 3952 + ... + 4801.

It is an arithmetic number, because the mean of its divisors is an integer number (407061).

Almost surely, 2^3720025 is an apocalyptic number.

It is an amenable number.

3720025 is a deficient number, since it is larger than the sum of its proper divisors (1164707).

3720025 is a wasteful number, since it uses less digits than its factorization.

3720025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8780 (or 8775 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 3720025 is about 1928.7366331358. The cubic root of 3720025 is about 154.9465650009.

Adding to 3720025 its reverse (5200273), we get a palindrome (8920298).

The spelling of 3720025 in words is "three million, seven hundred twenty thousand, twenty-five".