170393423 has 4 divisors (see below), whose sum is σ = 170442960. Its totient is φ = 170343888.

The previous prime is 170393413. The next prime is 170393449. The reversal of 170393423 is 324393071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324393071 = 449 ⋅722479.

It is a cyclic number.

It is not a de Polignac number, because 170393423 - 2²² = 166199119 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 170393423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170393413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19190 + ... + 26627.

It is an arithmetic number, because the mean of its divisors is an integer number (42610740).

Almost surely, 2^170393423 is an apocalyptic number.

170393423 is a deficient number, since it is larger than the sum of its proper divisors (49537).

170393423 is an equidigital number, since it uses as much as digits as its factorization.

170393423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49536.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 170393423 is about 13053.4831749997. The cubic root of 170393423 is about 554.3928354556.

The spelling of 170393423 in words is "one hundred seventy million, three hundred ninety-three thousand, four hundred twenty-three".