3881936 has 10 divisors (see below), whose sum is σ = 7521282. Its totient is φ = 1940960.

The previous prime is 3881887. The next prime is 3881951. The reversal of 3881936 is 6391883.

It can be written as a sum of positive squares in only one way, i.e., 3763600 + 118336 = 1940^2 + 344^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3881936.

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 as a sum of consecutive naturals, namely, 121295 + ... + 121326.

Almost surely, 2^3881936 is an apocalyptic number.

It is an amenable number.

3881936 is a deficient number, since it is larger than the sum of its proper divisors (3639346).

3881936 is a wasteful number, since it uses less digits than its factorization.

3881936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242629 (or 242623 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 3881936 is about 1970.2629266166. The cubic root of 3881936 is about 157.1626912391.

The spelling of 3881936 in words is "three million, eight hundred eighty-one thousand, nine hundred thirty-six".