3976986 has 32 divisors (see below), whose sum is σ = 8705088. Its totient is φ = 1203840.

The previous prime is 3976981. The next prime is 3976991. The reversal of 3976986 is 6896793.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3976981) and next prime (3976991).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3976981) 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 15 ways as a sum of consecutive naturals, for example, 4846 + ... + 5606.

It is an arithmetic number, because the mean of its divisors is an integer number (272034).

Almost surely, 2^3976986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3976986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4352544).

3976986 is an abundant number, since it is smaller than the sum of its proper divisors (4728102).

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

3976986 is a wasteful number, since it uses less digits than its factorization.

3976986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846.

The product of its digits is 489888, while the sum is 48.

The square root of 3976986 is about 1994.2382004164. The cubic root of 3976986 is about 158.4350823988.

The spelling of 3976986 in words is "three million, nine hundred seventy-six thousand, nine hundred eighty-six".