3866489 has 8 divisors (see below), whose sum is σ = 4235232. Its totient is φ = 3500640.

The previous prime is 3866479. The next prime is 3866543. The reversal of 3866489 is 9846683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3866489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3866419) by changing a digit.

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, 2882 + ... + 4004.

It is an arithmetic number, because the mean of its divisors is an integer number (529404).

Almost surely, 2^3866489 is an apocalyptic number.

It is an amenable number.

3866489 is a deficient number, since it is larger than the sum of its proper divisors (368743).

3866489 is a wasteful number, since it uses less digits than its factorization.

3866489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447.

The product of its digits is 248832, while the sum is 44.

The square root of 3866489 is about 1966.3389840005. The cubic root of 3866489 is about 156.9539535268.

The spelling of 3866489 in words is "three million, eight hundred sixty-six thousand, four hundred eighty-nine".