3878567 has 16 divisors (see below), whose sum is σ = 5121792. Its totient is φ = 2843520.

The previous prime is 3878561. The next prime is 3878597. The reversal of 3878567 is 7658783.

It is a cyclic number.

It is not a de Polignac number, because 3878567 - 2¹⁰ = 3877543 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173 + ... + 2790.

It is an arithmetic number, because the mean of its divisors is an integer number (320112).

Almost surely, 2^3878567 is an apocalyptic number.

3878567 is a deficient number, since it is larger than the sum of its proper divisors (1243225).

3878567 is a wasteful number, since it uses less digits than its factorization.

3878567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998.

The product of its digits is 282240, while the sum is 44.

The square root of 3878567 is about 1969.4077790036. The cubic root of 3878567 is about 157.1172126984.

The spelling of 3878567 in words is "three million, eight hundred seventy-eight thousand, five hundred sixty-seven".