3861001 has 4 divisors (see below), whose sum is σ = 3867412. Its totient is φ = 3854592.

The previous prime is 3860993. The next prime is 3861007. The reversal of 3861001 is 1001683.

3861001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 456976 + 3404025 = 676^2 + 1845^2 .

It is a cyclic number.

It is not a de Polignac number, because 3861001 - 2³ = 3860993 is a prime.

It is a super-3 number, since 3×3861001³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3861001.

It is not an unprimeable number, because it can be changed into a prime (3861007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2196 + ... + 3541.

It is an arithmetic number, because the mean of its divisors is an integer number (966853).

Almost surely, 2^3861001 is an apocalyptic number.

It is an amenable number.

3861001 is a deficient number, since it is larger than the sum of its proper divisors (6411).

3861001 is an equidigital number, since it uses as much as digits as its factorization.

3861001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 3861001 is about 1964.9430017179. The cubic root of 3861001 is about 156.8796594966.

Adding to 3861001 its reverse (1001683), we get a palindrome (4862684).

The spelling of 3861001 in words is "three million, eight hundred sixty-one thousand, one".