23440873 has 2 divisors, whose sum is σ = 23440874. Its totient is φ = 23440872.

The previous prime is 23440871. The next prime is 23440913. The reversal of 23440873 is 37804432.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22781529 + 659344 = 4773^2 + 812^2 .

It is a cyclic number.

It is not a de Polignac number, because 23440873 - 2¹ = 23440871 is a prime.

Together with 23440871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23440871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11720436 + 11720437.

It is an arithmetic number, because the mean of its divisors is an integer number (11720437).

Almost surely, 2^23440873 is an apocalyptic number.

It is an amenable number.

23440873 is a deficient number, since it is larger than the sum of its proper divisors (1).

23440873 is an equidigital number, since it uses as much as digits as its factorization.

23440873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 23440873 is about 4841.5775321686. The cubic root of 23440873 is about 286.1922884105.

It can be divided in two parts, 23 and 440873, that added together give a square (440896 = 664²).

The spelling of 23440873 in words is "twenty-three million, four hundred forty thousand, eight hundred seventy-three".