173089379 has 2 divisors, whose sum is σ = 173089380. Its totient is φ = 173089378.

The previous prime is 173089307. The next prime is 173089439. The reversal of 173089379 is 973980371.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173089379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (173089979) 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 as a sum of consecutive naturals, namely, 86544689 + 86544690.

It is an arithmetic number, because the mean of its divisors is an integer number (86544690).

Almost surely, 2^173089379 is an apocalyptic number.

173089379 is a deficient number, since it is larger than the sum of its proper divisors (1).

173089379 is an equidigital number, since it uses as much as digits as its factorization.

173089379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 173089379 is about 13156.3436790014. The cubic root of 173089379 is about 557.3014075448.

The spelling of 173089379 in words is "one hundred seventy-three million, eighty-nine thousand, three hundred seventy-nine".