3970945 has 32 divisors (see below), whose sum is σ = 5723136. Its totient is φ = 2611200.

The previous prime is 3970903. The next prime is 3970949. The reversal of 3970945 is 5490793.

3970945 = T₁₆₉ + T₁₇₀ + ... + T₃₀₅.

3970945 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 3970945 - 2¹¹ = 3968897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3970949) 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 31 ways as a sum of consecutive naturals, for example, 28917 + ... + 29053.

It is an arithmetic number, because the mean of its divisors is an integer number (178848).

Almost surely, 2^3970945 is an apocalyptic number.

It is an amenable number.

3970945 is a deficient number, since it is larger than the sum of its proper divisors (1752191).

3970945 is a wasteful number, since it uses less digits than its factorization.

3970945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 3970945 is about 1992.7230113591. The cubic root of 3970945 is about 158.3548213373.

The spelling of 3970945 in words is "three million, nine hundred seventy thousand, nine hundred forty-five".