169387 has 4 divisors (see below), whose sum is σ = 171000. Its totient is φ = 167776.

The previous prime is 169373. The next prime is 169399. The reversal of 169387 is 783961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783961 = 41 ⋅19121.

It is a cyclic number.

It is not a de Polignac number, because 169387 - 2⁷ = 169259 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (169307) 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, 637 + ... + 862.

It is an arithmetic number, because the mean of its divisors is an integer number (42750).

2¹⁶⁹³⁸⁷ is an apocalyptic number.

169387 is a deficient number, since it is larger than the sum of its proper divisors (1613).

169387 is a wasteful number, since it uses less digits than its factorization.

169387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612.

The product of its digits is 9072, while the sum is 34.

The square root of 169387 is about 411.5665195324. The cubic root of 169387 is about 55.3299178550.

The spelling of 169387 in words is "one hundred sixty-nine thousand, three hundred eighty-seven".