3861278 has 8 divisors (see below), whose sum is σ = 6132672. Its totient is φ = 1817056.

The previous prime is 3861269. The next prime is 3861289. The reversal of 3861278 is 8721683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56750 + ... + 56817.

It is an arithmetic number, because the mean of its divisors is an integer number (766584).

Almost surely, 2^3861278 is an apocalyptic number.

3861278 is a deficient number, since it is larger than the sum of its proper divisors (2271394).

3861278 is a wasteful number, since it uses less digits than its factorization.

3861278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113586.

The product of its digits is 16128, while the sum is 35.

The square root of 3861278 is about 1965.0134859588. The cubic root of 3861278 is about 156.8834110822.

It can be divided in two parts, 38 and 61278, that added together give a palindrome (61316).

The spelling of 3861278 in words is "three million, eight hundred sixty-one thousand, two hundred seventy-eight".