189947467 has 2 divisors, whose sum is σ = 189947468. Its totient is φ = 189947466.

The previous prime is 189947441. The next prime is 189947497. The reversal of 189947467 is 764749981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189947467 - 2¹¹ = 189945419 is a prime.

It is not a weakly prime, because it can be changed into another prime (189947497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94973733 + 94973734.

It is an arithmetic number, because the mean of its divisors is an integer number (94973734).

Almost surely, 2^189947467 is an apocalyptic number.

189947467 is a deficient number, since it is larger than the sum of its proper divisors (1).

189947467 is an equidigital number, since it uses as much as digits as its factorization.

189947467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 55.

The square root of 189947467 is about 13782.1430481620. The cubic root of 189947467 is about 574.8367193597.

The spelling of 189947467 in words is "one hundred eighty-nine million, nine hundred forty-seven thousand, four hundred sixty-seven".