189674327 has 2 divisors, whose sum is σ = 189674328. Its totient is φ = 189674326.

The previous prime is 189674273. The next prime is 189674347. The reversal of 189674327 is 723476981.

Together with previous prime (189674273) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (723476981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189674327 - 2¹⁶ = 189608791 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189674347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94837163 + 94837164.

It is an arithmetic number, because the mean of its divisors is an integer number (94837164).

Almost surely, 2^189674327 is an apocalyptic number.

189674327 is a deficient number, since it is larger than the sum of its proper divisors (1).

189674327 is an equidigital number, since it uses as much as digits as its factorization.

189674327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 47.

The square root of 189674327 is about 13772.2302841624. The cubic root of 189674327 is about 574.5610532794.

The spelling of 189674327 in words is "one hundred eighty-nine million, six hundred seventy-four thousand, three hundred twenty-seven".