623453 has 4 divisors (see below), whose sum is σ = 634080. Its totient is φ = 612828.

The previous prime is 623437. The next prime is 623477. The reversal of 623453 is 354326.

623453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 623453 - 2⁴ = 623437 is a prime.

It is a d-powerful number, because it can be written as 6 + 2¹⁵ + 4³ + 3¹⁰ + 5³ + 3¹² .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5225 + ... + 5342.

It is an arithmetic number, because the mean of its divisors is an integer number (158520).

2⁶²³⁴⁵³ is an apocalyptic number.

It is an amenable number.

623453 is a deficient number, since it is larger than the sum of its proper divisors (10627).

623453 is a wasteful number, since it uses less digits than its factorization.

623453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10626.

The product of its digits is 2160, while the sum is 23.

The square root of 623453 is about 789.5904001443. The cubic root of 623453 is about 85.4281968439.

Adding to 623453 its reverse (354326), we get a palindrome (977779).

The spelling of 623453 in words is "six hundred twenty-three thousand, four hundred fifty-three".