4084889 has 4 divisors (see below), whose sum is σ = 4095780. Its totient is φ = 4074000.

The previous prime is 4084859. The next prime is 4084891. The reversal of 4084889 is 9884804.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1081600 + 3003289 = 1040^2 + 1733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4084889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4084819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4862 + ... + 5639.

It is an arithmetic number, because the mean of its divisors is an integer number (1023945).

Almost surely, 2^4084889 is an apocalyptic number.

It is an amenable number.

4084889 is a deficient number, since it is larger than the sum of its proper divisors (10891).

4084889 is a wasteful number, since it uses less digits than its factorization.

4084889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10890.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 4084889 is about 2021.1108331806. The cubic root of 4084889 is about 159.8551945064.

The spelling of 4084889 in words is "four million, eighty-four thousand, eight hundred eighty-nine".