169469 has 4 divisors (see below), whose sum is σ = 170844. Its totient is φ = 168096.

The previous prime is 169457. The next prime is 169471. The reversal of 169469 is 964961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964961 = 71 ⋅13591.

It can be written as a sum of positive squares in 2 ways, for example, as 114244 + 55225 = 338^2 + 235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-169469 is a prime.

It is a super-2 number, since 2×169469² = 57439483922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169409) 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, 482 + ... + 755.

It is an arithmetic number, because the mean of its divisors is an integer number (42711).

2¹⁶⁹⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

169469 is a deficient number, since it is larger than the sum of its proper divisors (1375).

169469 is a wasteful number, since it uses less digits than its factorization.

169469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374.

The product of its digits is 11664, while the sum is 35.

The square root of 169469 is about 411.6661268552. Note that the first 3 decimals coincide. The cubic root of 169469 is about 55.3388447922.

It can be divided in two parts, 1694 and 69, that multiplied together give a triangular number (116886 = T₄₈₃).

The spelling of 169469 in words is "one hundred sixty-nine thousand, four hundred sixty-nine".