3918878 has 8 divisors (see below), whose sum is σ = 6133968. Its totient is φ = 1874224.

The previous prime is 3918869. The next prime is 3918881. The reversal of 3918878 is 8788193.

It is a sphenic number, since it is the product of 3 distinct 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 in 3 ways as a sum of consecutive naturals, for example, 42551 + ... + 42642.

It is an arithmetic number, because the mean of its divisors is an integer number (766746).

Almost surely, 2^3918878 is an apocalyptic number.

3918878 is a deficient number, since it is larger than the sum of its proper divisors (2215090).

3918878 is a wasteful number, since it uses less digits than its factorization.

3918878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85218.

The product of its digits is 96768, while the sum is 44.

The square root of 3918878 is about 1979.6156192554. The cubic root of 3918878 is about 157.6596583728.

The spelling of 3918878 in words is "three million, nine hundred eighteen thousand, eight hundred seventy-eight".