189322647 has 8 divisors (see below), whose sum is σ = 252526080. Its totient is φ = 126167160.

The previous prime is 189322633. The next prime is 189322657. The reversal of 189322647 is 746223981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 189322647 - 2¹⁴ = 189306263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189322599 and 189322608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189322657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1447 + ... + 19512.

It is an arithmetic number, because the mean of its divisors is an integer number (31565760).

Almost surely, 2^189322647 is an apocalyptic number.

189322647 is a deficient number, since it is larger than the sum of its proper divisors (63203433).

189322647 is a wasteful number, since it uses less digits than its factorization.

189322647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23973.

The product of its digits is 145152, while the sum is 42.

The square root of 189322647 is about 13759.4566389811. The cubic root of 189322647 is about 574.2057308244.

The spelling of 189322647 in words is "one hundred eighty-nine million, three hundred twenty-two thousand, six hundred forty-seven".