11477777 has 2 divisors, whose sum is σ = 11477778. Its totient is φ = 11477776.

The previous prime is 11477761. The next prime is 11477779. The reversal of 11477777 is 77777411.

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., 8994001 + 2483776 = 2999^2 + 1576^2 .

It is a cyclic number.

It is not a de Polignac number, because 11477777 - 2⁴ = 11477761 is a prime.

Together with 11477779, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (11477779) 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, 5738888 + 5738889.

It is an arithmetic number, because the mean of its divisors is an integer number (5738889).

Almost surely, 2^11477777 is an apocalyptic number.

It is an amenable number.

11477777 is a deficient number, since it is larger than the sum of its proper divisors (1).

11477777 is an equidigital number, since it uses as much as digits as its factorization.

11477777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67228, while the sum is 41.

The square root of 11477777 is about 3387.8868044845. The cubic root of 11477777 is about 225.5723829954.

The spelling of 11477777 in words is "eleven million, four hundred seventy-seven thousand, seven hundred seventy-seven".