23055839 has 4 divisors (see below), whose sum is σ = 23400024. Its totient is φ = 22711656.

The previous prime is 23055827. The next prime is 23055881. The reversal of 23055839 is 93855032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23055839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23055799 and 23055808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23055139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171992 + ... + 172125.

It is an arithmetic number, because the mean of its divisors is an integer number (5850006).

Almost surely, 2^23055839 is an apocalyptic number.

23055839 is a deficient number, since it is larger than the sum of its proper divisors (344185).

23055839 is an equidigital number, since it uses as much as digits as its factorization.

23055839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344184.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 23055839 is about 4801.6496123728. The cubic root of 23055839 is about 284.6166550167.

The spelling of 23055839 in words is "twenty-three million, fifty-five thousand, eight hundred thirty-nine".