23840623 has 4 divisors (see below), whose sum is σ = 23864400. Its totient is φ = 23816848.

The previous prime is 23840599. The next prime is 23840629. The reversal of 23840623 is 32604832.

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

It is a cyclic number.

It is not a de Polignac number, because 23840623 - 2¹⁷ = 23709551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23840591 and 23840600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23840629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10315 + ... + 12412.

It is an arithmetic number, because the mean of its divisors is an integer number (5966100).

Almost surely, 2^23840623 is an apocalyptic number.

23840623 is a deficient number, since it is larger than the sum of its proper divisors (23777).

23840623 is a wasteful number, since it uses less digits than its factorization.

23840623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23776.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 23840623 is about 4882.6860435625. The cubic root of 23840623 is about 287.8099915352.

The spelling of 23840623 in words is "twenty-three million, eight hundred forty thousand, six hundred twenty-three".