623168 has 56 divisors (see below), whose sum is σ = 1536192. Its totient is φ = 244224.

The previous prime is 623107. The next prime is 623171. The reversal of 623168 is 861326.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (26).

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 7 ways as a sum of consecutive naturals, for example, 5771 + ... + 5877.

It is an arithmetic number, because the mean of its divisors is an integer number (27432).

2⁶²³¹⁶⁸ 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 623168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (768096).

623168 is an abundant number, since it is smaller than the sum of its proper divisors (913024).

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

623168 is a wasteful number, since it uses less digits than its factorization.

623168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 129 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 623168 is about 789.4099061958. The cubic root of 623168 is about 85.4151775535.

The spelling of 623168 in words is "six hundred twenty-three thousand, one hundred sixty-eight".