3878982 has 32 divisors (see below), whose sum is σ = 8920800. Its totient is φ = 1247904.

The previous prime is 3878981. The next prime is 3878993. The reversal of 3878982 is 2898783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328 + ... + 2804.

It is an arithmetic number, because the mean of its divisors is an integer number (278775).

Almost surely, 2^3878982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3878982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4460400).

3878982 is an abundant number, since it is smaller than the sum of its proper divisors (5041818).

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

3878982 is a wasteful number, since it uses less digits than its factorization.

3878982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517 (or 2511 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 3878982 is about 1969.5131378084. The cubic root of 3878982 is about 157.1228162557.

The spelling of 3878982 in words is "three million, eight hundred seventy-eight thousand, nine hundred eighty-two".