168624223 has 4 divisors (see below), whose sum is σ = 168688960. Its totient is φ = 168559488.

The previous prime is 168624187. The next prime is 168624251. The reversal of 168624223 is 322426861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322426861 = 839 ⋅384299.

It is a cyclic number.

It is not a de Polignac number, because 168624223 - 2¹⁷ = 168493151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168624823) 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, 28290 + ... + 33727.

It is an arithmetic number, because the mean of its divisors is an integer number (42172240).

Almost surely, 2^168624223 is an apocalyptic number.

168624223 is a deficient number, since it is larger than the sum of its proper divisors (64737).

168624223 is an equidigital number, since it uses as much as digits as its factorization.

168624223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64736.

The product of its digits is 27648, while the sum is 34.

The square root of 168624223 is about 12985.5389953594. The cubic root of 168624223 is about 552.4673969145.

The spelling of 168624223 in words is "one hundred sixty-eight million, six hundred twenty-four thousand, two hundred twenty-three".