3878011 has 4 divisors (see below), whose sum is σ = 3943800. Its totient is φ = 3812224.

The previous prime is 3878003. The next prime is 3878051. The reversal of 3878011 is 1108783.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3878011 - 2³ = 3878003 is a prime.

It is a super-2 number, since 2×3878011² = 30077938632242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3878051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32806 + ... + 32923.

It is an arithmetic number, because the mean of its divisors is an integer number (985950).

Almost surely, 2^3878011 is an apocalyptic number.

3878011 is a deficient number, since it is larger than the sum of its proper divisors (65789).

3878011 is an equidigital number, since it uses as much as digits as its factorization.

3878011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65788.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 3878011 is about 1969.2666147579. The cubic root of 3878011 is about 157.1097046553.

The spelling of 3878011 in words is "three million, eight hundred seventy-eight thousand, eleven".