3970225 has 24 divisors (see below), whose sum is σ = 5753600. Its totient is φ = 2716560.

The previous prime is 3970223. The next prime is 3970247. The reversal of 3970225 is 5220793.

3970225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3970225 - 2¹ = 3970223 is a prime.

It is an Ulam number.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 3970193 and 3970202.

It is not an unprimeable number, because it can be changed into a prime (3970223) 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 23 ways as a sum of consecutive naturals, for example, 8344 + ... + 8806.

Almost surely, 2^3970225 is an apocalyptic number.

3970225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3970225 is a deficient number, since it is larger than the sum of its proper divisors (1783375).

3970225 is an equidigital number, since it uses as much as digits as its factorization.

3970225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 3970225 is about 1992.5423458486. The cubic root of 3970225 is about 158.3452499495.

The spelling of 3970225 in words is "three million, nine hundred seventy thousand, two hundred twenty-five".