23653983 has 4 divisors (see below), whose sum is σ = 31538648. Its totient is φ = 15769320.

The previous prime is 23653963. The next prime is 23653991. The reversal of 23653983 is 38935632.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23653983 - 2¹⁶ = 23588447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23653933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3942328 + ... + 3942333.

It is an arithmetic number, because the mean of its divisors is an integer number (7884662).

Almost surely, 2^23653983 is an apocalyptic number.

23653983 is a deficient number, since it is larger than the sum of its proper divisors (7884665).

23653983 is an equidigital number, since it uses as much as digits as its factorization.

23653983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7884664.

The product of its digits is 116640, while the sum is 39.

The square root of 23653983 is about 4863.5360592886. The cubic root of 23653983 is about 287.0569680566.

The spelling of 23653983 in words is "twenty-three million, six hundred fifty-three thousand, nine hundred eighty-three".