4993189 has 4 divisors (see below), whose sum is σ = 5286924. Its totient is φ = 4699456.

The previous prime is 4993159. The next prime is 4993199. The reversal of 4993189 is 9813994.

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 1600225 + 3392964 = 1265^2 + 1842^2 .

It is a cyclic number.

It is not a de Polignac number, because 4993189 - 2⁷ = 4993061 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4993129) 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, 146842 + ... + 146875.

It is an arithmetic number, because the mean of its divisors is an integer number (1321731).

Almost surely, 2^4993189 is an apocalyptic number.

It is an amenable number.

4993189 is a deficient number, since it is larger than the sum of its proper divisors (293735).

4993189 is a wasteful number, since it uses less digits than its factorization.

4993189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293734.

The product of its digits is 69984, while the sum is 43.

The square root of 4993189 is about 2234.5444725939. The cubic root of 4993189 is about 170.9199150775.

The spelling of 4993189 in words is "four million, nine hundred ninety-three thousand, one hundred eighty-nine".