3861850 has 12 divisors (see below), whose sum is σ = 7183134. Its totient is φ = 1544720.

The previous prime is 3861841. The next prime is 3861857. The reversal of 3861850 is 581683.

It can be written as a sum of positive squares in 3 ways, for example, as 1437601 + 2424249 = 1199^2 + 1557^2 .

It is not an unprimeable number, because it can be changed into a prime (3861857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38569 + ... + 38668.

Almost surely, 2^3861850 is an apocalyptic number.

3861850 is a deficient number, since it is larger than the sum of its proper divisors (3321284).

3861850 is a wasteful number, since it uses less digits than its factorization.

3861850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77249 (or 77244 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 3861850 is about 1965.1590266439. The cubic root of 3861850 is about 156.8911574708.

The spelling of 3861850 in words is "three million, eight hundred sixty-one thousand, eight hundred fifty".