192989471 has 2 divisors, whose sum is σ = 192989472. Its totient is φ = 192989470.

The previous prime is 192989417. The next prime is 192989497. The reversal of 192989471 is 174989291.

Together with previous prime (192989417) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-192989471 is a prime.

It is a super-3 number, since 3×192989471³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (192989411) 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, 96494735 + 96494736.

It is an arithmetic number, because the mean of its divisors is an integer number (96494736).

Almost surely, 2^192989471 is an apocalyptic number.

192989471 is a deficient number, since it is larger than the sum of its proper divisors (1).

192989471 is an equidigital number, since it uses as much as digits as its factorization.

192989471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 50.

The square root of 192989471 is about 13892.0650372794. The cubic root of 192989471 is about 577.8891473336.

The spelling of 192989471 in words is "one hundred ninety-two million, nine hundred eighty-nine thousand, four hundred seventy-one".