11576861 has 2 divisors, whose sum is σ = 11576862. Its totient is φ = 11576860.

The previous prime is 11576839. The next prime is 11576879. The reversal of 11576861 is 16867511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11356900 + 219961 = 3370^2 + 469^2 .

It is a cyclic number.

It is not a de Polignac number, because 11576861 - 2¹⁸ = 11314717 is a prime.

It is a super-2 number, since 2×11576861² = 268047421226642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11576821) 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, 5788430 + 5788431.

It is an arithmetic number, because the mean of its divisors is an integer number (5788431).

Almost surely, 2^11576861 is an apocalyptic number.

It is an amenable number.

11576861 is a deficient number, since it is larger than the sum of its proper divisors (1).

11576861 is an equidigital number, since it uses as much as digits as its factorization.

11576861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 35.

The square root of 11576861 is about 3402.4786553335. The cubic root of 11576861 is about 226.2196223065.

The spelling of 11576861 in words is "eleven million, five hundred seventy-six thousand, eight hundred sixty-one".