173087880 has 384 divisors, whose sum is σ = 679034880. Its totient is φ = 34467840.

The previous prime is 173087879. The next prime is 173087881. The reversal of 173087880 is 88780371.

It is an interprime number because it is at equal distance from previous prime (173087879) and next prime (173087881).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (173087881) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5583465 + ... + 5583495.

It is an arithmetic number, because the mean of its divisors is an integer number (1768320).

Almost surely, 2^173087880 is an apocalyptic number.

173087880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 173087880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339517440).

173087880 is an abundant number, since it is smaller than the sum of its proper divisors (505947000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

173087880 is a wasteful number, since it uses less digits than its factorization.

173087880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 173087880 is about 13156.2867101626. The cubic root of 173087880 is about 557.2997987474.

The spelling of 173087880 in words is "one hundred seventy-three million, eighty-seven thousand, eight hundred eighty".