626423 has 8 divisors (see below), whose sum is σ = 723360. Its totient is φ = 531360.

The previous prime is 626393. The next prime is 626443. The reversal of 626423 is 324626.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 626423 - 2¹⁶ = 560887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353 + ... + 1173.

It is an arithmetic number, because the mean of its divisors is an integer number (90420).

2⁶²⁶⁴²³ is an apocalyptic number.

626423 is a deficient number, since it is larger than the sum of its proper divisors (96937).

626423 is a wasteful number, since it uses less digits than its factorization.

626423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937.

The product of its digits is 1728, while the sum is 23.

The square root of 626423 is about 791.4688875755. The cubic root of 626423 is about 85.5636360377.

The spelling of 626423 in words is "six hundred twenty-six thousand, four hundred twenty-three".