189608743 has 4 divisors (see below), whose sum is σ = 190816600. Its totient is φ = 188400888.

The previous prime is 189608707. The next prime is 189608747. The reversal of 189608743 is 347806981.

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: 347806981 = 6029 ⋅57689.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189608743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189608693 and 189608702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189608747) 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, 603693 + ... + 604006.

It is an arithmetic number, because the mean of its divisors is an integer number (47704150).

Almost surely, 2^189608743 is an apocalyptic number.

189608743 is a deficient number, since it is larger than the sum of its proper divisors (1207857).

189608743 is a wasteful number, since it uses less digits than its factorization.

189608743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207856.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 189608743 is about 13769.8490550913. The cubic root of 189608743 is about 574.4948233426.

The spelling of 189608743 in words is "one hundred eighty-nine million, six hundred eight thousand, seven hundred forty-three".