192689039 has 2 divisors, whose sum is σ = 192689040. Its totient is φ = 192689038.

The previous prime is 192689027. The next prime is 192689041. The reversal of 192689039 is 930986291.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-192689039 is a prime.

It is a Sophie Germain prime.

Together with 192689041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 192688984 and 192689002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (192689059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96344519 + 96344520.

It is an arithmetic number, because the mean of its divisors is an integer number (96344520).

Almost surely, 2^192689039 is an apocalyptic number.

192689039 is a deficient number, since it is larger than the sum of its proper divisors (1).

192689039 is an equidigital number, since it uses as much as digits as its factorization.

192689039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 192689039 is about 13881.2477465104. The cubic root of 192689039 is about 577.5891196334.

The spelling of 192689039 in words is "one hundred ninety-two million, six hundred eighty-nine thousand, thirty-nine".