189604799 has 4 divisors (see below), whose sum is σ = 191735280. Its totient is φ = 187474320.

The previous prime is 189604783. The next prime is 189604823. The reversal of 189604799 is 997406981.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997406981 = 229 ⋅4355489.

It is a cyclic number.

It is not a de Polignac number, because 189604799 - 2⁴ = 189604783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189604799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189604729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065107 + ... + 1065284.

It is an arithmetic number, because the mean of its divisors is an integer number (47933820).

Almost surely, 2^189604799 is an apocalyptic number.

189604799 is a deficient number, since it is larger than the sum of its proper divisors (2130481).

189604799 is an equidigital number, since it uses as much as digits as its factorization.

189604799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130480.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 189604799 is about 13769.7058429002. The cubic root of 189604799 is about 574.4908400114.

The spelling of 189604799 in words is "one hundred eighty-nine million, six hundred four thousand, seven hundred ninety-nine".