5623403 has 2 divisors, whose sum is σ = 5623404. Its totient is φ = 5623402.

The previous prime is 5623393. The next prime is 5623421. The reversal of 5623403 is 3043265.

5623403 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5623403 is a prime.

It is a super-2 number, since 2×5623403² = 63245322600818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5623463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2811701 + 2811702.

It is an arithmetic number, because the mean of its divisors is an integer number (2811702).

Almost surely, 2^5623403 is an apocalyptic number.

5623403 is a deficient number, since it is larger than the sum of its proper divisors (1).

5623403 is an equidigital number, since it uses as much as digits as its factorization.

5623403 is an evil number, because the sum of its binary digits is even.

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

The square root of 5623403 is about 2371.3715440647. The cubic root of 5623403 is about 177.8278329393.

Adding to 5623403 its reverse (3043265), we get a palindrome (8666668).

The spelling of 5623403 in words is "five million, six hundred twenty-three thousand, four hundred three".