3689858 has 16 divisors (see below), whose sum is σ = 5683200. Its totient is φ = 1796256.

The previous prime is 3689843. The next prime is 3689863. The reversal of 3689858 is 8589863.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18443 + ... + 18641.

It is an arithmetic number, because the mean of its divisors is an integer number (355200).

Almost surely, 2^3689858 is an apocalyptic number.

3689858 is a deficient number, since it is larger than the sum of its proper divisors (1993342).

3689858 is a wasteful number, since it uses less digits than its factorization.

3689858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its digits is 414720, while the sum is 47.

The square root of 3689858 is about 1920.9003097506. The cubic root of 3689858 is about 154.5265888474.

The spelling of 3689858 in words is "three million, six hundred eighty-nine thousand, eight hundred fifty-eight".