11986577 has 2 divisors, whose sum is σ = 11986578. Its totient is φ = 11986576.

The previous prime is 11986573. The next prime is 11986627. The reversal of 11986577 is 77568911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10233601 + 1752976 = 3199^2 + 1324^2 .

It is a cyclic number.

It is not a de Polignac number, because 11986577 - 2² = 11986573 is a prime.

It is not a weakly prime, because it can be changed into another prime (11986571) 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, 5993288 + 5993289.

It is an arithmetic number, because the mean of its divisors is an integer number (5993289).

Almost surely, 2^11986577 is an apocalyptic number.

It is an amenable number.

11986577 is a deficient number, since it is larger than the sum of its proper divisors (1).

11986577 is an equidigital number, since it uses as much as digits as its factorization.

11986577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 44.

The square root of 11986577 is about 3462.1636298708. The cubic root of 11986577 is about 228.8574527771.

The spelling of 11986577 in words is "eleven million, nine hundred eighty-six thousand, five hundred seventy-seven".