3876778 has 8 divisors (see below), whose sum is σ = 6015780. Its totient is φ = 1871520.

The previous prime is 3876773. The next prime is 3876781. The reversal of 3876778 is 8776783.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3853369 + 23409 = 1963^2 + 153^2 .

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

It is a super-2 number, since 2×3876778² = 30058815322568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3876773) 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 3 ways as a sum of consecutive naturals, for example, 33363 + ... + 33478.

Almost surely, 2^3876778 is an apocalyptic number.

3876778 is a deficient number, since it is larger than the sum of its proper divisors (2139002).

3876778 is a wasteful number, since it uses less digits than its factorization.

3876778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66872.

The product of its digits is 395136, while the sum is 46.

The square root of 3876778 is about 1968.9535291621. The cubic root of 3876778 is about 157.0930520637.

The spelling of 3876778 in words is "three million, eight hundred seventy-six thousand, seven hundred seventy-eight".