9874189 has 4 divisors (see below), whose sum is σ = 10633756. Its totient is φ = 9114624.

The previous prime is 9874187. The next prime is 9874223. The reversal of 9874189 is 9814789.

It is a happy number.

9874189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1562500 + 8311689 = 1250^2 + 2883^2 .

It is a cyclic number.

It is not a de Polignac number, because 9874189 - 2¹ = 9874187 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9874187) 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, 379764 + ... + 379789.

It is an arithmetic number, because the mean of its divisors is an integer number (2658439).

Almost surely, 2^9874189 is an apocalyptic number.

It is an amenable number.

9874189 is a deficient number, since it is larger than the sum of its proper divisors (759567).

9874189 is a wasteful number, since it uses less digits than its factorization.

9874189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759566.

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

The square root of 9874189 is about 3142.3222304531. The cubic root of 9874189 is about 214.5361479895.

The spelling of 9874189 in words is "nine million, eight hundred seventy-four thousand, one hundred eighty-nine".