189084487 has 2 divisors, whose sum is σ = 189084488. Its totient is φ = 189084486.

The previous prime is 189084473. The next prime is 189084491. The reversal of 189084487 is 784480981.

189084487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189084487 - 2²⁷ = 54866759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189084487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189084187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94542243 + 94542244.

It is an arithmetic number, because the mean of its divisors is an integer number (94542244).

Almost surely, 2^189084487 is an apocalyptic number.

189084487 is a deficient number, since it is larger than the sum of its proper divisors (1).

189084487 is an equidigital number, since it uses as much as digits as its factorization.

189084487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 49.

The square root of 189084487 is about 13750.7995040288. The cubic root of 189084487 is about 573.9648541654.

The spelling of 189084487 in words is "one hundred eighty-nine million, eighty-four thousand, four hundred eighty-seven".