173096987 has 4 divisors (see below), whose sum is σ = 197825136. Its totient is φ = 148368840.

The previous prime is 173096971. The next prime is 173097007. The reversal of 173096987 is 789690371.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 173096987 - 2⁴ = 173096971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173096947) 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, 12364064 + ... + 12364077.

It is an arithmetic number, because the mean of its divisors is an integer number (49456284).

Almost surely, 2^173096987 is an apocalyptic number.

173096987 is a deficient number, since it is larger than the sum of its proper divisors (24728149).

173096987 is an equidigital number, since it uses as much as digits as its factorization.

173096987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24728148.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 173096987 is about 13156.6328139080. The cubic root of 173096987 is about 557.3095726655.

The spelling of 173096987 in words is "one hundred seventy-three million, ninety-six thousand, nine hundred eighty-seven".