3861250 has 20 divisors (see below), whose sum is σ = 7239870. Its totient is φ = 1544000.

The previous prime is 3861241. The next prime is 3861251. The reversal of 3861250 is 521683.

It is a happy number.

3861250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 471969 + 3389281 = 687^2 + 1841^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (3861251) 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 9 ways as a sum of consecutive naturals, for example, 295 + ... + 2794.

Almost surely, 2^3861250 is an apocalyptic number.

3861250 is a deficient number, since it is larger than the sum of its proper divisors (3378620).

3861250 is an equidigital number, since it uses as much as digits as its factorization.

3861250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111 (or 3096 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 3861250 is about 1965.0063613129. The cubic root of 3861250 is about 156.8830318687.

Subtracting from 3861250 its sum of digits (25), we obtain a square (3861225 = 1965²).

The spelling of 3861250 in words is "three million, eight hundred sixty-one thousand, two hundred fifty".