11727899 has 2 divisors, whose sum is σ = 11727900. Its totient is φ = 11727898.

The previous prime is 11727887. The next prime is 11727913. The reversal of 11727899 is 99872711.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11727899 is a prime.

It is a super-2 number, since 2×11727899² = 275087229908402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11727809) 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, 5863949 + 5863950.

It is an arithmetic number, because the mean of its divisors is an integer number (5863950).

Almost surely, 2^11727899 is an apocalyptic number.

11727899 is a deficient number, since it is larger than the sum of its proper divisors (1).

11727899 is an equidigital number, since it uses as much as digits as its factorization.

11727899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 44.

The square root of 11727899 is about 3424.6020206734. The cubic root of 11727899 is about 227.1991692569.

The spelling of 11727899 in words is "eleven million, seven hundred twenty-seven thousand, eight hundred ninety-nine".