3871970 has 8 divisors (see below), whose sum is σ = 6969564. Its totient is φ = 1548784.

The previous prime is 3871969. The next prime is 3872017. The reversal of 3871970 is 791783.

3871970 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 2 ways, for example, as 3775249 + 96721 = 1943^2 + 311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3871970.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 193589 + ... + 193608.

Almost surely, 2^3871970 is an apocalyptic number.

3871970 is a deficient number, since it is larger than the sum of its proper divisors (3097594).

3871970 is a wasteful number, since it uses less digits than its factorization.

3871970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387204.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 3871970 is about 1967.7321972260. The cubic root of 3871970 is about 157.0280826610.

The spelling of 3871970 in words is "three million, eight hundred seventy-one thousand, nine hundred seventy".