927842189 has 2 divisors, whose sum is σ = 927842190. Its totient is φ = 927842188.

The previous prime is 927842173. The next prime is 927842203. The reversal of 927842189 is 981248729.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 809402500 + 118439689 = 28450^2 + 10883^2 .

It is a cyclic number.

It is not a de Polignac number, because 927842189 - 2⁴ = 927842173 is a prime.

It is a super-2 number, since 2×927842189² = 1721782255376623442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (927842159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 463921094 + 463921095.

It is an arithmetic number, because the mean of its divisors is an integer number (463921095).

Almost surely, 2^927842189 is an apocalyptic number.

It is an amenable number.

927842189 is a deficient number, since it is larger than the sum of its proper divisors (1).

927842189 is an equidigital number, since it uses as much as digits as its factorization.

927842189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 50.

The square root of 927842189 is about 30460.5021133927. The cubic root of 927842189 is about 975.3444985570.

The spelling of 927842189 in words is "nine hundred twenty-seven million, eight hundred forty-two thousand, one hundred eighty-nine".