11715853 has 2 divisors, whose sum is σ = 11715854. Its totient is φ = 11715852.

The previous prime is 11715833. The next prime is 11715857. The reversal of 11715853 is 35851711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11377129 + 338724 = 3373^2 + 582^2 .

It is a cyclic number.

It is not a de Polignac number, because 11715853 - 2²¹ = 9618701 is a prime.

It is a super-2 number, since 2×11715853² = 274522423035218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11715857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5857926 + 5857927.

It is an arithmetic number, because the mean of its divisors is an integer number (5857927).

Almost surely, 2^11715853 is an apocalyptic number.

It is an amenable number.

11715853 is a deficient number, since it is larger than the sum of its proper divisors (1).

11715853 is an equidigital number, since it uses as much as digits as its factorization.

11715853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 31.

The square root of 11715853 is about 3422.8428243202. The cubic root of 11715853 is about 227.1213554117.

The spelling of 11715853 in words is "eleven million, seven hundred fifteen thousand, eight hundred fifty-three".