3866957982 has 40 divisors (see below), whose sum is σ = 8670949056. Its totient is φ = 1288078848.

The previous prime is 3866957977. The next prime is 3866958031. The reversal of 3866957982 is 2897596683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 246238 + ... + 261470.

Almost surely, 2^3866957982 is an apocalyptic number.

3866957982 is an abundant number, since it is smaller than the sum of its proper divisors (4803991074).

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

3866957982 is a wasteful number, since it uses less digits than its factorization.

3866957982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16814 (or 16805 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The square root of 3866957982 is about 62184.8693976276. The cubic root of 3866957982 is about 1569.6029912899.

The spelling of 3866957982 in words is "three billion, eight hundred sixty-six million, nine hundred fifty-seven thousand, nine hundred eighty-two".