3861801 has 12 divisors (see below), whose sum is σ = 5729412. Its totient is φ = 2504736.

The previous prime is 3861751. The next prime is 3861811. The reversal of 3861801 is 1081683.

It can be written as a sum of positive squares in 2 ways, for example, as 3426201 + 435600 = 1851^2 + 660^2 .

It is not a de Polignac number, because 3861801 - 2⁹ = 3861289 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3861811) 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 11 ways as a sum of consecutive naturals, for example, 5466 + ... + 6131.

It is an arithmetic number, because the mean of its divisors is an integer number (477451).

Almost surely, 2^3861801 is an apocalyptic number.

It is an amenable number.

3861801 is a deficient number, since it is larger than the sum of its proper divisors (1867611).

3861801 is a wasteful number, since it uses less digits than its factorization.

3861801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11640 (or 11637 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 3861801 is about 1965.1465594199. The cubic root of 3861801 is about 156.8904939115.

It can be divided in two parts, 386 and 1801, that added together give a 7-th power (2187 = 3⁷).

The spelling of 3861801 in words is "three million, eight hundred sixty-one thousand, eight hundred one".