11928517 has 2 divisors, whose sum is σ = 11928518. Its totient is φ = 11928516.

The previous prime is 11928487. The next prime is 11928529. The reversal of 11928517 is 71582911.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11792356 + 136161 = 3434^2 + 369^2 .

It is a cyclic number.

It is not a de Polignac number, because 11928517 - 2¹⁵ = 11895749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11928557) 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, 5964258 + 5964259.

It is an arithmetic number, because the mean of its divisors is an integer number (5964259).

Almost surely, 2^11928517 is an apocalyptic number.

It is an amenable number.

11928517 is a deficient number, since it is larger than the sum of its proper divisors (1).

11928517 is an equidigital number, since it uses as much as digits as its factorization.

11928517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 34.

The square root of 11928517 is about 3453.7685214849. The cubic root of 11928517 is about 228.4873450210.

The spelling of 11928517 in words is "eleven million, nine hundred twenty-eight thousand, five hundred seventeen".