3981576 has 32 divisors (see below), whose sum is σ = 10388160. Its totient is φ = 1269312.

The previous prime is 3981569. The next prime is 3981581. The reversal of 3981576 is 6751893.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3055 + ... + 4158.

It is an arithmetic number, because the mean of its divisors is an integer number (324630).

Almost surely, 2^3981576 is an apocalyptic number.

It is an amenable number.

3981576 is an abundant number, since it is smaller than the sum of its proper divisors (6406584).

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

3981576 is a wasteful number, since it uses less digits than its factorization.

3981576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7245 (or 7241 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 3981576 is about 1995.3886839411. The cubic root of 3981576 is about 158.4960110716.

The spelling of 3981576 in words is "three million, nine hundred eighty-one thousand, five hundred seventy-six".