23543963 has 12 divisors (see below), whose sum is σ = 25633272. Its totient is φ = 21607680.

The previous prime is 23543957. The next prime is 23543977. The reversal of 23543963 is 36934532.

It is not a de Polignac number, because 23543963 - 2⁶ = 23543899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23543903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10856 + ... + 12842.

It is an arithmetic number, because the mean of its divisors is an integer number (2136106).

Almost surely, 2^23543963 is an apocalyptic number.

23543963 is a deficient number, since it is larger than the sum of its proper divisors (2089309).

23543963 is a wasteful number, since it uses less digits than its factorization.

23543963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062 (or 2045 counting only the distinct ones).

The product of its digits is 58320, while the sum is 35.

The square root of 23543963 is about 4852.2121759049. The cubic root of 23543963 is about 286.6112207230.

The spelling of 23543963 in words is "twenty-three million, five hundred forty-three thousand, nine hundred sixty-three".