3970681 has 8 divisors (see below), whose sum is σ = 4665024. Its totient is φ = 3331920.

The previous prime is 3970679. The next prime is 3970691. The reversal of 3970681 is 1860793.

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

It is a cyclic number.

It is not a de Polignac number, because 3970681 - 2¹ = 3970679 is a prime.

It is a super-2 number, since 2×3970681² = 31532615207522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3970691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13741 + ... + 14026.

It is an arithmetic number, because the mean of its divisors is an integer number (583128).

Almost surely, 2^3970681 is an apocalyptic number.

It is an amenable number.

3970681 is a deficient number, since it is larger than the sum of its proper divisors (694343).

3970681 is a wasteful number, since it uses less digits than its factorization.

3970681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27791.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3970681 is about 1992.6567692405. The cubic root of 3970681 is about 158.3513119628.

The spelling of 3970681 in words is "three million, nine hundred seventy thousand, six hundred eighty-one".