168286473 has 6 divisors (see below), whose sum is σ = 243080474. Its totient is φ = 112190976.

The previous prime is 168286453. The next prime is 168286483. The reversal of 168286473 is 374682861.

It can be written as a sum of positive squares in only one way, i.e., 168272784 + 13689 = 12972^2 + 117^2 .

It is not a de Polignac number, because 168286473 - 2⁵ = 168286441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (168286403) 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, 9349240 + ... + 9349257.

Almost surely, 2^168286473 is an apocalyptic number.

It is an amenable number.

168286473 is a deficient number, since it is larger than the sum of its proper divisors (74794001).

168286473 is a wasteful number, since it uses less digits than its factorization.

168286473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18698503 (or 18698500 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 168286473 is about 12972.5276257174. The cubic root of 168286473 is about 552.0982910193.

The spelling of 168286473 in words is "one hundred sixty-eight million, two hundred eighty-six thousand, four hundred seventy-three".