168392943 has 6 divisors (see below), whose sum is σ = 243234264. Its totient is φ = 112261956.

The previous prime is 168392941. The next prime is 168392971. The reversal of 168392943 is 349293861.

It is a happy number.

It is not a de Polignac number, because 168392943 - 2¹ = 168392941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168392941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9355155 + ... + 9355172.

It is an arithmetic number, because the mean of its divisors is an integer number (40539044).

Almost surely, 2^168392943 is an apocalyptic number.

168392943 is a deficient number, since it is larger than the sum of its proper divisors (74841321).

168392943 is a wasteful number, since it uses less digits than its factorization.

168392943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18710333 (or 18710330 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 168392943 is about 12976.6306489782. The cubic root of 168392943 is about 552.2146986976.

The spelling of 168392943 in words is "one hundred sixty-eight million, three hundred ninety-two thousand, nine hundred forty-three".