672623 has 16 divisors (see below), whose sum is σ = 820800. Its totient is φ = 550368.

The previous prime is 672593. The next prime is 672629. The reversal of 672623 is 326276.

It is not a de Polignac number, because 672623 - 2¹² = 668527 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6 and base 9.

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 672592 and 672601.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12665 + ... + 12717.

It is an arithmetic number, because the mean of its divisors is an integer number (51300).

2⁶⁷²⁶²³ is an apocalyptic number.

672623 is a deficient number, since it is larger than the sum of its proper divisors (148177).

672623 is an equidigital number, since it uses as much as digits as its factorization.

672623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 97 counting only the distinct ones).

The product of its digits is 3024, while the sum is 26.

The square root of 672623 is about 820.1359643376. The cubic root of 672623 is about 87.6174422987.

Adding to 672623 its reverse (326276), we get a palindrome (998899).

The spelling of 672623 in words is "six hundred seventy-two thousand, six hundred twenty-three".