189502769 has 2 divisors, whose sum is σ = 189502770. Its totient is φ = 189502768.

The previous prime is 189502739. The next prime is 189502777. The reversal of 189502769 is 967205981.

189502769 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 can be written as a sum of positive squares in only one way, i.e., 172791025 + 16711744 = 13145^2 + 4088^2 .

It is a cyclic number.

It is not a de Polignac number, because 189502769 - 2¹⁶ = 189437233 is a prime.

It is a super-2 number, since 2×189502769² = 71822598917334722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (189502739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94751384 + 94751385.

It is an arithmetic number, because the mean of its divisors is an integer number (94751385).

Almost surely, 2^189502769 is an apocalyptic number.

It is an amenable number.

189502769 is a deficient number, since it is larger than the sum of its proper divisors (1).

189502769 is an equidigital number, since it uses as much as digits as its factorization.

189502769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 189502769 is about 13766.0004721778. Note that the first 3 decimals coincide. The cubic root of 189502769 is about 574.3877733206.

The spelling of 189502769 in words is "one hundred eighty-nine million, five hundred two thousand, seven hundred sixty-nine".