672005172 has 24 divisors (see below), whose sum is σ = 1660248576. Its totient is φ = 210825088.

The previous prime is 672005141. The next prime is 672005177. The reversal of 672005172 is 271500276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672005177) 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, 1646868 + ... + 1647275.

It is an arithmetic number, because the mean of its divisors is an integer number (69177024).

Almost surely, 2^672005172 is an apocalyptic number.

It is an amenable number.

672005172 is an abundant number, since it is smaller than the sum of its proper divisors (988243404).

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

672005172 is a wasteful number, since it uses less digits than its factorization.

672005172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3294167 (or 3294165 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 672005172 is about 25923.0625505552. The cubic root of 672005172 is about 875.9060750822.

The spelling of 672005172 in words is "six hundred seventy-two million, five thousand, one hundred seventy-two".