11729387 has 2 divisors, whose sum is σ = 11729388. Its totient is φ = 11729386.

The previous prime is 11729383. The next prime is 11729401. The reversal of 11729387 is 78392711.

It is a weak prime.

It is an emirp because it is prime and its reverse (78392711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11729387 - 2² = 11729383 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11729387.

It is not a weakly prime, because it can be changed into another prime (11729383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5864693 + 5864694.

It is an arithmetic number, because the mean of its divisors is an integer number (5864694).

Almost surely, 2^11729387 is an apocalyptic number.

11729387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11729387 is an equidigital number, since it uses as much as digits as its factorization.

11729387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 38.

The square root of 11729387 is about 3424.8192653044. The cubic root of 11729387 is about 227.2087776295.

The spelling of 11729387 in words is "eleven million, seven hundred twenty-nine thousand, three hundred eighty-seven".