173212004 has 48 divisors (see below), whose sum is σ = 359202816. Its totient is φ = 71517600.

The previous prime is 173211947. The next prime is 173212019. The reversal of 173212004 is 400212371.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373877 + ... + 374339.

It is an arithmetic number, because the mean of its divisors is an integer number (7483392).

Almost surely, 2^173212004 is an apocalyptic number.

173212004 is a gapful number since it is divisible by the number (14) 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 173212004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179601408).

173212004 is an abundant number, since it is smaller than the sum of its proper divisors (185990812).

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

173212004 is a wasteful number, since it uses less digits than its factorization.

173212004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 173212004 is about 13161.0031532555. The cubic root of 173212004 is about 557.4329830225.

Adding to 173212004 its reverse (400212371), we get a palindrome (573424375).

The spelling of 173212004 in words is "one hundred seventy-three million, two hundred twelve thousand, four".