3970986 has 16 divisors (see below), whose sum is σ = 8025024. Its totient is φ = 1309824.

The previous prime is 3970949. The next prime is 3970991. The reversal of 3970986 is 6890793.

It is a happy number.

It is an unprimeable number.

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, 2830 + ... + 3993.

It is an arithmetic number, because the mean of its divisors is an integer number (501564).

Almost surely, 2^3970986 is an apocalyptic number.

3970986 is an abundant number, since it is smaller than the sum of its proper divisors (4054038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3970986 is a wasteful number, since it uses less digits than its factorization.

3970986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6925.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 3970986 is about 1992.7332987633. The cubic root of 3970986 is about 158.3553663398.

The spelling of 3970986 in words is "three million, nine hundred seventy thousand, nine hundred eighty-six".