11799521 has 2 divisors, whose sum is σ = 11799522. Its totient is φ = 11799520.

The previous prime is 11799517. The next prime is 11799533. The reversal of 11799521 is 12599711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11316496 + 483025 = 3364^2 + 695^2 .

It is a cyclic number.

It is not a de Polignac number, because 11799521 - 2² = 11799517 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11799421) 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, 5899760 + 5899761.

It is an arithmetic number, because the mean of its divisors is an integer number (5899761).

Almost surely, 2^11799521 is an apocalyptic number.

It is an amenable number.

11799521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11799521 is an equidigital number, since it uses as much as digits as its factorization.

11799521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 35.

The square root of 11799521 is about 3435.0430856104. The cubic root of 11799521 is about 227.6607309188.

The spelling of 11799521 in words is "eleven million, seven hundred ninety-nine thousand, five hundred twenty-one".