672620 has 36 divisors (see below), whose sum is σ = 1537200. Its totient is φ = 247104.

The previous prime is 672593. The next prime is 672629. The reversal of 672620 is 26276.

Added to its reverse (26276) it gives a square (698896 = 836²).

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672629) by changing a digit.

672620 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3281 + ... + 3479.

It is an arithmetic number, because the mean of its divisors is an integer number (42700).

2⁶⁷²⁶²⁰ 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 672620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (768600).

672620 is an abundant number, since it is smaller than the sum of its proper divisors (864580).

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

672620 is a wasteful number, since it uses less digits than its factorization.

672620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 672620 is about 820.1341353706. The cubic root of 672620 is about 87.6173120362.

Adding to 672620 its reverse (26276), we get a palindrome (698896).

The spelling of 672620 in words is "six hundred seventy-two thousand, six hundred twenty".