4084989 has 8 divisors (see below), whose sum is σ = 5477472. Its totient is φ = 2707920.

The previous prime is 4084937. The next prime is 4084991. The reversal of 4084989 is 9894804.

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-4084989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4084989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4084909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3219 + ... + 4304.

It is an arithmetic number, because the mean of its divisors is an integer number (684684).

Almost surely, 2^4084989 is an apocalyptic number.

It is an amenable number.

4084989 is a deficient number, since it is larger than the sum of its proper divisors (1392483).

4084989 is a wasteful number, since it uses less digits than its factorization.

4084989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7707.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 4084989 is about 2021.1355719001. The cubic root of 4084989 is about 159.8564989392.

The spelling of 4084989 in words is "four million, eighty-four thousand, nine hundred eighty-nine".