673208172 has 336 divisors, whose sum is σ = 2262247680. Its totient is φ = 170481024.

The previous prime is 673208153. The next prime is 673208189. The reversal of 673208172 is 271802376.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 11410279 + ... + 11410337.

It is an arithmetic number, because the mean of its divisors is an integer number (6732880).

Almost surely, 2^673208172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673208172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1131123840).

673208172 is an abundant number, since it is smaller than the sum of its proper divisors (1589039508).

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

673208172 is a wasteful number, since it uses less digits than its factorization.

673208172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 673208172 is about 25946.2554523769. The cubic root of 673208172 is about 876.4284355750.

It can be divided in two parts, 673208 and 172, that added together give a triangular number (673380 = T₁₁₆₀).

The spelling of 673208172 in words is "six hundred seventy-three million, two hundred eight thousand, one hundred seventy-two".