169398 has 16 divisors (see below), whose sum is σ = 376560. Its totient is φ = 56448.

The previous prime is 169373. The next prime is 169399. The reversal of 169398 is 893961.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169399) by changing a digit.

169398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1515 + ... + 1622.

It is an arithmetic number, because the mean of its divisors is an integer number (23535).

169398 is a Friedman number, since it can be written as (3^9-861)*9, using all its digits and the basic arithmetic operations.

2¹⁶⁹³⁹⁸ is an apocalyptic number.

169398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

169398 is an abundant number, since it is smaller than the sum of its proper divisors (207162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169398 is a wasteful number, since it uses less digits than its factorization.

169398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148 (or 3142 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 169398 is about 411.5798828903. The cubic root of 169398 is about 55.3311155383.

The spelling of 169398 in words is "one hundred sixty-nine thousand, three hundred ninety-eight".