173969 has 2 divisors, whose sum is σ = 173970. Its totient is φ = 173968.

The previous prime is 173933. The next prime is 173977. The reversal of 173969 is 969371.

173969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169744 + 4225 = 412^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 173969 - 2⁸ = 173713 is a prime.

It is a super-2 number, since 2×173969² = 60530425922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (173909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86984 + 86985.

It is an arithmetic number, because the mean of its divisors is an integer number (86985).

2¹⁷³⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

173969 is a deficient number, since it is larger than the sum of its proper divisors (1).

173969 is an equidigital number, since it uses as much as digits as its factorization.

173969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 35.

The square root of 173969 is about 417.0959122312. The cubic root of 173969 is about 55.8243860814.

The spelling of 173969 in words is "one hundred seventy-three thousand, nine hundred sixty-nine".