168434473 has 4 divisors (see below), whose sum is σ = 170463888. Its totient is φ = 166405060.

The previous prime is 168434401. The next prime is 168434479. The reversal of 168434473 is 374434861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168434473 - 2⁹ = 168433961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168434479) 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 in 3 ways as a sum of consecutive naturals, for example, 1014583 + ... + 1014748.

It is an arithmetic number, because the mean of its divisors is an integer number (42615972).

Almost surely, 2^168434473 is an apocalyptic number.

It is an amenable number.

168434473 is a deficient number, since it is larger than the sum of its proper divisors (2029415).

168434473 is an equidigital number, since it uses as much as digits as its factorization.

168434473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029414.

The product of its digits is 193536, while the sum is 40.

The square root of 168434473 is about 12978.2307345801. The cubic root of 168434473 is about 552.2600917150.

It can be divided in two parts, 16843 and 4473, that added together give a square (21316 = 146²).

The spelling of 168434473 in words is "one hundred sixty-eight million, four hundred thirty-four thousand, four hundred seventy-three".