11427071 has 2 divisors, whose sum is σ = 11427072. Its totient is φ = 11427070.

The previous prime is 11427049. The next prime is 11427089. The reversal of 11427071 is 17072411.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11427071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11427011) 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 as a sum of consecutive naturals, namely, 5713535 + 5713536.

It is an arithmetic number, because the mean of its divisors is an integer number (5713536).

Almost surely, 2^11427071 is an apocalyptic number.

11427071 is a deficient number, since it is larger than the sum of its proper divisors (1).

11427071 is an equidigital number, since it uses as much as digits as its factorization.

11427071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 11427071 is about 3380.3950952514. The cubic root of 11427071 is about 225.2397181727.

Adding to 11427071 its reverse (17072411), we get a palindrome (28499482).

The spelling of 11427071 in words is "eleven million, four hundred twenty-seven thousand, seventy-one".