173979 has 12 divisors (see below), whose sum is σ = 270816. Its totient is φ = 106992.

The previous prime is 173977. The next prime is 173981. The reversal of 173979 is 979371.

173979 is nontrivially palindromic in base 6.

It is an interprime number because it is at equal distance from previous prime (173977) and next prime (173981).

It is not a de Polignac number, because 173979 - 2¹ = 173977 is a prime.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (173977) 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 11 ways as a sum of consecutive naturals, for example, 627 + ... + 860.

It is an arithmetic number, because the mean of its divisors is an integer number (22568).

2¹⁷³⁹⁷⁹ is an apocalyptic number.

173979 is a deficient number, since it is larger than the sum of its proper divisors (96837).

173979 is a wasteful number, since it uses less digits than its factorization.

173979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506 (or 1503 counting only the distinct ones).

The product of its digits is 11907, while the sum is 36.

The square root of 173979 is about 417.1078997094. The cubic root of 173979 is about 55.8254556842.

The spelling of 173979 in words is "one hundred seventy-three thousand, nine hundred seventy-nine".