169423 has 8 divisors (see below), whose sum is σ = 183920. Its totient is φ = 155520.

The previous prime is 169409. The next prime is 169427. The reversal of 169423 is 324961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 169423 - 2¹⁷ = 38351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169427) 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 7 ways as a sum of consecutive naturals, for example, 583 + ... + 823.

It is an arithmetic number, because the mean of its divisors is an integer number (22990).

2¹⁶⁹⁴²³ is an apocalyptic number.

169423 is a deficient number, since it is larger than the sum of its proper divisors (14497).

169423 is a wasteful number, since it uses less digits than its factorization.

169423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its digits is 1296, while the sum is 25.

The square root of 169423 is about 411.6102525448. The cubic root of 169423 is about 55.3338373529. Note that the first 3 decimals are identical.

The spelling of 169423 in words is "one hundred sixty-nine thousand, four hundred twenty-three".