3897884 has 12 divisors (see below), whose sum is σ = 6875904. Its totient is φ = 1933344.

The previous prime is 3897877. The next prime is 3897889. The reversal of 3897884 is 4887983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897889) by changing a digit.

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, 3329 + ... + 4344.

It is an arithmetic number, because the mean of its divisors is an integer number (572992).

Almost surely, 2^3897884 is an apocalyptic number.

It is an amenable number.

3897884 is a deficient number, since it is larger than the sum of its proper divisors (2978020).

3897884 is a wasteful number, since it uses less digits than its factorization.

3897884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7804 (or 7802 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 3897884 is about 1974.3059540000. The cubic root of 3897884 is about 157.3776188815.

Subtracting 3897884 from its reverse (4887983), we obtain a palindrome (990099).

The spelling of 3897884 in words is "three million, eight hundred ninety-seven thousand, eight hundred eighty-four".