168695047 has 2 divisors, whose sum is σ = 168695048. Its totient is φ = 168695046.

The previous prime is 168695039. The next prime is 168695089. The reversal of 168695047 is 740596861.

It is a weak prime.

It is an emirp because it is prime and its reverse (740596861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168695047 - 2³ = 168695039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168694988 and 168695006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168695017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84347523 + 84347524.

It is an arithmetic number, because the mean of its divisors is an integer number (84347524).

Almost surely, 2^168695047 is an apocalyptic number.

168695047 is a deficient number, since it is larger than the sum of its proper divisors (1).

168695047 is an equidigital number, since it uses as much as digits as its factorization.

168695047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 168695047 is about 12988.2657425847. The cubic root of 168695047 is about 552.5447335183.

The spelling of 168695047 in words is "one hundred sixty-eight million, six hundred ninety-five thousand, forty-seven".