3881860 has 12 divisors (see below), whose sum is σ = 8151948. Its totient is φ = 1552736.

The previous prime is 3881849. The next prime is 3881863. The reversal of 3881860 is 681883.

It can be written as a sum of positive squares in 2 ways, for example, as 1577536 + 2304324 = 1256^2 + 1518^2 .

It is not an unprimeable number, because it can be changed into a prime (3881863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97027 + ... + 97066.

It is an arithmetic number, because the mean of its divisors is an integer number (679329).

Almost surely, 2^3881860 is an apocalyptic number.

It is an amenable number.

3881860 is an abundant number, since it is smaller than the sum of its proper divisors (4270088).

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

3881860 is a wasteful number, since it uses less digits than its factorization.

3881860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194102 (or 194100 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 3881860 is about 1970.2436397563. The cubic root of 3881860 is about 157.1616655960.

The spelling of 3881860 in words is "three million, eight hundred eighty-one thousand, eight hundred sixty".