23403393 has 12 divisors (see below), whose sum is σ = 36405460. Its totient is φ = 14402016.

The previous prime is 23403379. The next prime is 23403431. The reversal of 23403393 is 39330432.

It can be written as a sum of positive squares in 2 ways, for example, as 9809424 + 13593969 = 3132^2 + 3687^2 .

It is not a de Polignac number, because 23403393 - 2⁶ = 23403329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23403313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99898 + ... + 100131.

Almost surely, 2^23403393 is an apocalyptic number.

It is an amenable number.

23403393 is a deficient number, since it is larger than the sum of its proper divisors (13002067).

23403393 is a wasteful number, since it uses less digits than its factorization.

23403393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200048 (or 200045 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 23403393 is about 4837.7053444789. The cubic root of 23403393 is about 286.0396745130.

The spelling of 23403393 in words is "twenty-three million, four hundred three thousand, three hundred ninety-three".