189376849 has 2 divisors, whose sum is σ = 189376850. Its totient is φ = 189376848.

The previous prime is 189376783. The next prime is 189376877. The reversal of 189376849 is 948673981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143041600 + 46335249 = 11960^2 + 6807^2 .

It is a cyclic number.

It is not a de Polignac number, because 189376849 - 2⁷ = 189376721 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189376849.

It is not a weakly prime, because it can be changed into another prime (183376849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94688424 + 94688425.

It is an arithmetic number, because the mean of its divisors is an integer number (94688425).

Almost surely, 2^189376849 is an apocalyptic number.

It is an amenable number.

189376849 is a deficient number, since it is larger than the sum of its proper divisors (1).

189376849 is an equidigital number, since it uses as much as digits as its factorization.

189376849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 55.

The square root of 189376849 is about 13761.4261252241. The cubic root of 189376849 is about 574.2605228772.

The spelling of 189376849 in words is "one hundred eighty-nine million, three hundred seventy-six thousand, eight hundred forty-nine".