3189638 has 4 divisors (see below), whose sum is σ = 4784460. Its totient is φ = 1594818.

The previous prime is 3189619. The next prime is 3189647. The reversal of 3189638 is 8369813.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 797408 + ... + 797411.

It is an arithmetic number, because the mean of its divisors is an integer number (1196115).

Almost surely, 2^3189638 is an apocalyptic number.

3189638 is a deficient number, since it is larger than the sum of its proper divisors (1594822).

3189638 is a wasteful number, since it uses less digits than its factorization.

3189638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594821.

The product of its digits is 31104, while the sum is 38.

The square root of 3189638 is about 1785.9557665295. The cubic root of 3189638 is about 147.2020298928.

The spelling of 3189638 in words is "three million, one hundred eighty-nine thousand, six hundred thirty-eight".