672056 has 32 divisors (see below), whose sum is σ = 1572480. Its totient is φ = 261600.

The previous prime is 672043. The next prime is 672059. The reversal of 672056 is 650276.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71 + ... + 1161.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2⁶⁷²⁰⁵⁶ 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 672056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786240).

672056 is an abundant number, since it is smaller than the sum of its proper divisors (900424).

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

672056 is a wasteful number, since it uses less digits than its factorization.

672056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 672056 is about 819.7902170678. The cubic root of 672056 is about 87.5928157964.

It can be divided in two parts, 6720 and 56, that added together give a palindrome (6776).

The spelling of 672056 in words is "six hundred seventy-two thousand, fifty-six".