23400427 has 2 divisors, whose sum is σ = 23400428.
Its totient is φ = 23400426.
The previous prime is 23400413. The next prime is 23400451. The reversal of 23400427 is 72400432.
Adding to 23400427 its reverse (72400432), we get a palindrome (95800859).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 23400427 - 211 = 23398379 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 23400398 and 23400407.
It is not a weakly prime, because it can be changed into another prime (23409427) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700213 + 11700214.
It is an arithmetic number, because the mean of its divisors is an integer number (11700214).
Almost surely, 223400427 is an apocalyptic number.
23400427 is a deficient number, since it is larger than the sum of its proper divisors (1).
23400427 is an equidigital number, since it uses as much as digits as its factorization.
23400427 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1344, while the sum is 22.
The square root of 23400427 is about 4837.3987844708.
The cubic root of 23400427 is about 286.0275903746.
The spelling of 23400427 in words is "twenty-three million, four hundred thousand, four hundred twenty-seven".