623104 has 20 divisors (see below), whose sum is σ = 1246014. Its totient is φ = 311296.

The previous prime is 623071. The next prime is 623107. The reversal of 623104 is 401326.

It can be written as a sum of positive squares in only one way, i.e., 565504 + 57600 = 752^2 + 240^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97 + ... + 1120.

2⁶²³¹⁰⁴ is an apocalyptic number.

623104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

623104 is a deficient number, since it is larger than the sum of its proper divisors (622910).

623104 is an equidigital number, since it uses as much as digits as its factorization.

623104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 623104 is about 789.3693685468. The cubic root of 623104 is about 85.4122533776.

It can be divided in two parts, 623 and 104, that added together give a palindrome (727).

The spelling of 623104 in words is "six hundred twenty-three thousand, one hundred four".