3887860 has 24 divisors (see below), whose sum is σ = 8202600. Its totient is φ = 1547904.

The previous prime is 3887843. The next prime is 3887861. The reversal of 3887860 is 687883.

It can be written as a sum of positive squares in 4 ways, for example, as 155236 + 3732624 = 394^2 + 1932^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887861) 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 7 ways as a sum of consecutive naturals, for example, 6702 + ... + 7258.

It is an arithmetic number, because the mean of its divisors is an integer number (341775).

Almost surely, 2^3887860 is an apocalyptic number.

It is an amenable number.

3887860 is an abundant number, since it is smaller than the sum of its proper divisors (4314740).

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

3887860 is a wasteful number, since it uses less digits than its factorization.

3887860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 3887860 is about 1971.7657061629. The cubic root of 3887860 is about 157.2425962647.

The spelling of 3887860 in words is "three million, eight hundred eighty-seven thousand, eight hundred sixty".