3899378 has 16 divisors (see below), whose sum is σ = 6720000. Its totient is φ = 1662336.

The previous prime is 3899353. The next prime is 3899381. The reversal of 3899378 is 8739983.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2498 + ... + 3746.

It is an arithmetic number, because the mean of its divisors is an integer number (420000).

Almost surely, 2^3899378 is an apocalyptic number.

3899378 is a deficient number, since it is larger than the sum of its proper divisors (2820622).

3899378 is a wasteful number, since it uses less digits than its factorization.

3899378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481.

The product of its digits is 326592, while the sum is 47.

The square root of 3899378 is about 1974.6842785620. The cubic root of 3899378 is about 157.3977231337.

The spelling of 3899378 in words is "three million, eight hundred ninety-nine thousand, three hundred seventy-eight".