168675973 has 4 divisors (see below), whose sum is σ = 168703468. Its totient is φ = 168648480.

The previous prime is 168675967. The next prime is 168675979. The reversal of 168675973 is 379576861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 379576861 = 397 ⋅956113.

It is an interprime number because it is at equal distance from previous prime (168675967) and next prime (168675979).

It can be written as a sum of positive squares in 2 ways, for example, as 79977249 + 88698724 = 8943^2 + 9418^2 .

It is a cyclic number.

It is not a de Polignac number, because 168675973 - 2⁹ = 168675461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168675973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168675979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115 + ... + 18367.

It is an arithmetic number, because the mean of its divisors is an integer number (42175867).

Almost surely, 2^168675973 is an apocalyptic number.

It is an amenable number.

168675973 is a deficient number, since it is larger than the sum of its proper divisors (27495).

168675973 is an equidigital number, since it uses as much as digits as its factorization.

168675973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27494.

The product of its digits is 1905120, while the sum is 52.

The square root of 168675973 is about 12987.5314436578. The cubic root of 168675973 is about 552.5239077033.

The spelling of 168675973 in words is "one hundred sixty-eight million, six hundred seventy-five thousand, nine hundred seventy-three".