23403523 has 8 divisors (see below), whose sum is σ = 27495216. Its totient is φ = 19639200.

The previous prime is 23403521. The next prime is 23403533. The reversal of 23403523 is 32530432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23403523 - 2¹ = 23403521 is a prime.

It is a Duffinian number.

23403523 is a modest number, since divided by 3523 gives 234 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 23403494 and 23403503.

It is not an unprimeable number, because it can be changed into a prime (23403521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81688 + ... + 81973.

It is an arithmetic number, because the mean of its divisors is an integer number (3436902).

Almost surely, 2^23403523 is an apocalyptic number.

23403523 is a deficient number, since it is larger than the sum of its proper divisors (4091693).

23403523 is a wasteful number, since it uses less digits than its factorization.

23403523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163685.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 23403523 is about 4837.7187805824. The cubic root of 23403523 is about 286.0402041383.

Adding to 23403523 its reverse (32530432), we get a palindrome (55933955).

The spelling of 23403523 in words is "twenty-three million, four hundred three thousand, five hundred twenty-three".