4084389 has 12 divisors (see below), whose sum is σ = 6103500. Its totient is φ = 2628864.

The previous prime is 4084349. The next prime is 4084391. The reversal of 4084389 is 9834804.

It can be written as a sum of positive squares in 2 ways, for example, as 1361889 + 2722500 = 1167^2 + 1650^2 .

It is not a de Polignac number, because 4084389 - 2⁷ = 4084261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4084349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7564 + ... + 8085.

It is an arithmetic number, because the mean of its divisors is an integer number (508625).

Almost surely, 2^4084389 is an apocalyptic number.

It is an amenable number.

4084389 is a deficient number, since it is larger than the sum of its proper divisors (2019111).

4084389 is a wasteful number, since it uses less digits than its factorization.

4084389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15684 (or 15681 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 4084389 is about 2020.9871350407. The cubic root of 4084389 is about 159.8486720233.

The spelling of 4084389 in words is "four million, eighty-four thousand, three hundred eighty-nine".