173073887 has 8 divisors (see below), whose sum is σ = 199719936. Its totient is φ = 146908152.

The previous prime is 173073883. The next prime is 173073913. The reversal of 173073887 is 788370371.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 173073887 - 2² = 173073883 is a prime.

It is a super-2 number, since 2×173073887² = 59909140722577538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173073883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119303 + ... + 120744.

It is an arithmetic number, because the mean of its divisors is an integer number (24964992).

Almost surely, 2^173073887 is an apocalyptic number.

173073887 is a deficient number, since it is larger than the sum of its proper divisors (26646049).

173073887 is a wasteful number, since it uses less digits than its factorization.

173073887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240157.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 173073887 is about 13155.7549004229. The cubic root of 173073887 is about 557.2847803528.

The spelling of 173073887 in words is "one hundred seventy-three million, seventy-three thousand, eight hundred eighty-seven".