672512 has 36 divisors (see below), whose sum is σ = 1398096. Its totient is φ = 322560.

The previous prime is 672499. The next prime is 672521. The reversal of 672512 is 215276.

It is a plaindrome in base 9.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9437 + ... + 9507.

It is an arithmetic number, because the mean of its divisors is an integer number (38836).

2⁶⁷²⁵¹² 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 672512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699048).

672512 is an abundant number, since it is smaller than the sum of its proper divisors (725584).

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

672512 is an equidigital number, since it uses as much as digits as its factorization.

672512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 110 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 672512 is about 820.0682898393. The cubic root of 672512 is about 87.6126223272.

Adding to 672512 its reverse (215276), we get a palindrome (887788).

The spelling of 672512 in words is "six hundred seventy-two thousand, five hundred twelve".