3977886 has 16 divisors (see below), whose sum is σ = 8679168. Its totient is φ = 1205400.

The previous prime is 3977867. The next prime is 3977891. The reversal of 3977886 is 6887793.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 30070 + ... + 30201.

It is an arithmetic number, because the mean of its divisors is an integer number (542448).

Almost surely, 2^3977886 is an apocalyptic number.

3977886 is an abundant number, since it is smaller than the sum of its proper divisors (4701282).

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

3977886 is a wasteful number, since it uses less digits than its factorization.

3977886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60287.

The product of its digits is 508032, while the sum is 48.

The square root of 3977886 is about 1994.4638377268. The cubic root of 3977886 is about 158.4470328908.

The spelling of 3977886 in words is "three million, nine hundred seventy-seven thousand, eight hundred eighty-six".