189322873 has 2 divisors, whose sum is σ = 189322874. Its totient is φ = 189322872.

The previous prime is 189322841. The next prime is 189322877. The reversal of 189322873 is 378223981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170772624 + 18550249 = 13068^2 + 4307^2 .

It is a cyclic number.

It is not a de Polignac number, because 189322873 - 2⁵ = 189322841 is a prime.

It is not a weakly prime, because it can be changed into another prime (189322877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94661436 + 94661437.

It is an arithmetic number, because the mean of its divisors is an integer number (94661437).

Almost surely, 2^189322873 is an apocalyptic number.

It is an amenable number.

189322873 is a deficient number, since it is larger than the sum of its proper divisors (1).

189322873 is an equidigital number, since it uses as much as digits as its factorization.

189322873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 189322873 is about 13759.4648515122. The cubic root of 189322873 is about 574.2059593064.

The spelling of 189322873 in words is "one hundred eighty-nine million, three hundred twenty-two thousand, eight hundred seventy-three".