3979976 has 96 divisors (see below), whose sum is σ = 10342080. Its totient is φ = 1411200.

The previous prime is 3979967. The next prime is 3979981. The reversal of 3979976 is 6799793.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56021 + ... + 56091.

It is an arithmetic number, because the mean of its divisors is an integer number (107730).

Almost surely, 2^3979976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3979976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5171040).

3979976 is an abundant number, since it is smaller than the sum of its proper divisors (6362104).

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

3979976 is a wasteful number, since it uses less digits than its factorization.

3979976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 104 counting only the distinct ones).

The product of its digits is 642978, while the sum is 50.

The square root of 3979976 is about 1994.9877192604. The cubic root of 3979976 is about 158.4747776376.

It can be divided in two parts, 3 and 979976, that added together give a palindrome (979979).

The spelling of 3979976 in words is "three million, nine hundred seventy-nine thousand, nine hundred seventy-six".