3862866 has 32 divisors (see below), whose sum is σ = 9014400. Its totient is φ = 1103088.

The previous prime is 3862861. The next prime is 3862891. The reversal of 3862866 is 6682683.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3862861) 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, 1120 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (281700).

Almost surely, 2^3862866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3862866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4507200).

3862866 is an abundant number, since it is smaller than the sum of its proper divisors (5151534).

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

3862866 is a wasteful number, since it uses less digits than its factorization.

3862866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903 (or 1889 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 3862866 is about 1965.4175128964. The cubic root of 3862866 is about 156.9049149048.

The spelling of 3862866 in words is "three million, eight hundred sixty-two thousand, eight hundred sixty-six".