189824653 has 4 divisors (see below), whose sum is σ = 193042080. Its totient is φ = 186607228.

The previous prime is 189824651. The next prime is 189824683. The reversal of 189824653 is 356428981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 356428981 = 3163 ⋅112687.

It is a cyclic number.

It is not a de Polignac number, because 189824653 - 2¹ = 189824651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189824651) 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, 1608625 + ... + 1608742.

It is an arithmetic number, because the mean of its divisors is an integer number (48260520).

Almost surely, 2^189824653 is an apocalyptic number.

It is an amenable number.

189824653 is a deficient number, since it is larger than the sum of its proper divisors (3217427).

189824653 is an equidigital number, since it uses as much as digits as its factorization.

189824653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217426.

The product of its digits is 414720, while the sum is 46.

The square root of 189824653 is about 13777.6867797174. The cubic root of 189824653 is about 574.7128022597.

The spelling of 189824653 in words is "one hundred eighty-nine million, eight hundred twenty-four thousand, six hundred fifty-three".