3879878 has 4 divisors (see below), whose sum is σ = 5819820. Its totient is φ = 1939938.

The previous prime is 3879853. The next prime is 3879913. The reversal of 3879878 is 8789783.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 969968 + ... + 969971.

It is an arithmetic number, because the mean of its divisors is an integer number (1454955).

Almost surely, 2^3879878 is an apocalyptic number.

3879878 is a deficient number, since it is larger than the sum of its proper divisors (1939942).

3879878 is a wasteful number, since it uses less digits than its factorization.

3879878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939941.

The product of its digits is 677376, while the sum is 50.

The square root of 3879878 is about 1969.7405920577. The cubic root of 3879878 is about 157.1349131758.

The spelling of 3879878 in words is "three million, eight hundred seventy-nine thousand, eight hundred seventy-eight".