3659878 has 16 divisors (see below), whose sum is σ = 5646960. Its totient is φ = 1778400.

The previous prime is 3659861. The next prime is 3659917. The reversal of 3659878 is 8789563.

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 7 ways as a sum of consecutive naturals, for example, 15868 + ... + 16096.

It is an arithmetic number, because the mean of its divisors is an integer number (352935).

Almost surely, 2^3659878 is an apocalyptic number.

3659878 is a deficient number, since it is larger than the sum of its proper divisors (1987082).

3659878 is a wasteful number, since it uses less digits than its factorization.

3659878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423.

The product of its digits is 362880, while the sum is 46.

The square root of 3659878 is about 1913.0807614944. The cubic root of 3659878 is about 154.1069420794.

The spelling of 3659878 in words is "three million, six hundred fifty-nine thousand, eight hundred seventy-eight".