3961976 has 16 divisors (see below), whose sum is σ = 7452000. Its totient is φ = 1974784.

The previous prime is 3961973. The next prime is 3961981. The reversal of 3961976 is 6791693.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3041 + ... + 4143.

It is an arithmetic number, because the mean of its divisors is an integer number (465750).

Almost surely, 2^3961976 is an apocalyptic number.

It is an amenable number.

3961976 is a deficient number, since it is larger than the sum of its proper divisors (3490024).

3961976 is a wasteful number, since it uses less digits than its factorization.

3961976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558 (or 1554 counting only the distinct ones).

The product of its digits is 61236, while the sum is 41.

The square root of 3961976 is about 1990.4713009737. The cubic root of 3961976 is about 158.2355084241.

The spelling of 3961976 in words is "three million, nine hundred sixty-one thousand, nine hundred seventy-six".