3947882 has 8 divisors (see below), whose sum is σ = 5942916. Its totient is φ = 1966912.

The previous prime is 3947861. The next prime is 3947891. The reversal of 3947882 is 2887493.

It can be written as a sum of positive squares in 2 ways, for example, as 3644281 + 303601 = 1909^2 + 551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 4.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2783 + ... + 3954.

Almost surely, 2^3947882 is an apocalyptic number.

3947882 is a deficient number, since it is larger than the sum of its proper divisors (1995034).

3947882 is a wasteful number, since it uses less digits than its factorization.

3947882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7032.

The product of its digits is 96768, while the sum is 41.

The square root of 3947882 is about 1986.9277792612. The cubic root of 3947882 is about 158.0476542684.

The spelling of 3947882 in words is "three million, nine hundred forty-seven thousand, eight hundred eighty-two".