3970856 has 32 divisors (see below), whose sum is σ = 7737600. Its totient is φ = 1909440.

The previous prime is 3970849. The next prime is 3970859. The reversal of 3970856 is 6580793.

3970856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 3¹¹ + 9 + 7⁵ + 0 + 8⁷ + 5³ + 6⁸ .

It is not an unprimeable number, because it can be changed into a prime (3970859) 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, 38501 + ... + 38603.

It is an arithmetic number, because the mean of its divisors is an integer number (241800).

Almost surely, 2^3970856 is an apocalyptic number.

It is an amenable number.

3970856 is a deficient number, since it is larger than the sum of its proper divisors (3766744).

3970856 is a wasteful number, since it uses less digits than its factorization.

3970856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 3970856 is about 1992.7006799818. The cubic root of 3970856 is about 158.3536382701.

The spelling of 3970856 in words is "three million, nine hundred seventy thousand, eight hundred fifty-six".