173387087 has 8 divisors (see below), whose sum is σ = 182529504. Its totient is φ = 164378368.

The previous prime is 173387077. The next prime is 173387101. The reversal of 173387087 is 780783371.

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 173387087 - 2⁸ = 173386831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173387047) 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, 30758 + ... + 35955.

It is an arithmetic number, because the mean of its divisors is an integer number (22816188).

Almost surely, 2^173387087 is an apocalyptic number.

173387087 is a deficient number, since it is larger than the sum of its proper divisors (9142417).

173387087 is a wasteful number, since it uses less digits than its factorization.

173387087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66849.

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

The square root of 173387087 is about 13167.6530558790. The cubic root of 173387087 is about 557.6207378575.

The spelling of 173387087 in words is "one hundred seventy-three million, three hundred eighty-seven thousand, eighty-seven".