23006403 has 16 divisors (see below), whose sum is σ = 38952960. Its totient is φ = 13146408.

The previous prime is 23006369. The next prime is 23006407. The reversal of 23006403 is 30460032.

23006403 is a `hidden beast` number, since 23 + 0 + 0 + 640 + 3 = 666.

It is not a de Polignac number, because 23006403 - 2⁶ = 23006339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23006407) 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 15 ways as a sum of consecutive naturals, for example, 60675 + ... + 61052.

It is an arithmetic number, because the mean of its divisors is an integer number (2434560).

Almost surely, 2^23006403 is an apocalyptic number.

23006403 is a deficient number, since it is larger than the sum of its proper divisors (15946557).

23006403 is a wasteful number, since it uses less digits than its factorization.

23006403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121743 (or 121737 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23006403 is about 4796.4990357551. The cubic root of 23006403 is about 284.4130857979.

Adding to 23006403 its reverse (30460032), we get a palindrome (53466435).

It can be divided in two parts, 23006 and 403, that added together give a square (23409 = 153²).

The spelling of 23006403 in words is "twenty-three million, six thousand, four hundred three".