11438771 has 2 divisors, whose sum is σ = 11438772. Its totient is φ = 11438770.

The previous prime is 11438767. The next prime is 11438803. The reversal of 11438771 is 17783411.

It is a happy number.

It is an a-pointer prime, because the next prime (11438803) can be obtained adding 11438771 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11438771 - 2² = 11438767 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11438701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5719385 + 5719386.

It is an arithmetic number, because the mean of its divisors is an integer number (5719386).

Almost surely, 2^11438771 is an apocalyptic number.

11438771 is a deficient number, since it is larger than the sum of its proper divisors (1).

11438771 is an equidigital number, since it uses as much as digits as its factorization.

11438771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 32.

The square root of 11438771 is about 3382.1252194441. The cubic root of 11438771 is about 225.3165650975.

The spelling of 11438771 in words is "eleven million, four hundred thirty-eight thousand, seven hundred seventy-one".