189283879 has 2 divisors, whose sum is σ = 189283880. Its totient is φ = 189283878.

The previous prime is 189283873. The next prime is 189283883. The reversal of 189283879 is 978382981.

189283879 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 189283879 - 2⁵ = 189283847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189283873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94641939 + 94641940.

It is an arithmetic number, because the mean of its divisors is an integer number (94641940).

Almost surely, 2^189283879 is an apocalyptic number.

189283879 is a deficient number, since it is larger than the sum of its proper divisors (1).

189283879 is an equidigital number, since it uses as much as digits as its factorization.

189283879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 55.

The square root of 189283879 is about 13758.0477902935. The cubic root of 189283879 is about 574.1665343737.

The spelling of 189283879 in words is "one hundred eighty-nine million, two hundred eighty-three thousand, eight hundred seventy-nine".