4789189 has 4 divisors (see below), whose sum is σ = 5070924. Its totient is φ = 4507456.

The previous prime is 4789177. The next prime is 4789193. The reversal of 4789189 is 9819874.

It is a happy number.

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 4133089 + 656100 = 2033^2 + 810^2 .

It is a cyclic number.

It is not a de Polignac number, because 4789189 - 2⁷ = 4789061 is a prime.

It is a Duffinian number.

4789189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4789139) 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, 140842 + ... + 140875.

It is an arithmetic number, because the mean of its divisors is an integer number (1267731).

Almost surely, 2^4789189 is an apocalyptic number.

It is an amenable number.

4789189 is a deficient number, since it is larger than the sum of its proper divisors (281735).

4789189 is a wasteful number, since it uses less digits than its factorization.

4789189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281734.

The product of its digits is 145152, while the sum is 46.

The square root of 4789189 is about 2188.4215773018. The cubic root of 4789189 is about 168.5597941041.

The spelling of 4789189 in words is "four million, seven hundred eighty-nine thousand, one hundred eighty-nine".