3856860 has 72 divisors (see below), whose sum is σ = 13374816. Its totient is φ = 881280.

The previous prime is 3856837. The next prime is 3856861. The reversal of 3856860 is 686583.

3856860 is a `hidden beast` number, since 38 + 568 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271 + ... + 2790.

Almost surely, 2^3856860 is an apocalyptic number.

3856860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3856860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6687408).

3856860 is an abundant number, since it is smaller than the sum of its proper divisors (9517956).

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

3856860 is a wasteful number, since it uses less digits than its factorization.

3856860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083 (or 3078 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3856860 is about 1963.8889988999. Note that the first 3 decimals coincide. The cubic root of 3856860 is about 156.8235539203.

The spelling of 3856860 in words is "three million, eight hundred fifty-six thousand, eight hundred sixty".