11400427 has 2 divisors, whose sum is σ = 11400428. Its totient is φ = 11400426.

The previous prime is 11400407. The next prime is 11400439. The reversal of 11400427 is 72400411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11400427 - 2¹¹ = 11398379 is a prime.

It is not a weakly prime, because it can be changed into another prime (11400407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700213 + 5700214.

It is an arithmetic number, because the mean of its divisors is an integer number (5700214).

Almost surely, 2^11400427 is an apocalyptic number.

11400427 is a deficient number, since it is larger than the sum of its proper divisors (1).

11400427 is an equidigital number, since it uses as much as digits as its factorization.

11400427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 11400427 is about 3376.4518358774. The cubic root of 11400427 is about 225.0645214136.

Adding to 11400427 its reverse (72400411), we get a palindrome (83800838).

The spelling of 11400427 in words is "eleven million, four hundred thousand, four hundred twenty-seven".