11927977 has 2 divisors, whose sum is σ = 11927978. Its totient is φ = 11927976.

The previous prime is 11927939. The next prime is 11927983. The reversal of 11927977 is 77972911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9865881 + 2062096 = 3141^2 + 1436^2 .

It is a cyclic number.

It is not a de Polignac number, because 11927977 - 2⁷ = 11927849 is a prime.

It is not a weakly prime, because it can be changed into another prime (11927917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5963988 + 5963989.

It is an arithmetic number, because the mean of its divisors is an integer number (5963989).

Almost surely, 2^11927977 is an apocalyptic number.

It is an amenable number.

11927977 is a deficient number, since it is larger than the sum of its proper divisors (1).

11927977 is an equidigital number, since it uses as much as digits as its factorization.

11927977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55566, while the sum is 43.

The square root of 11927977 is about 3453.6903451236. The cubic root of 11927977 is about 228.4838971203.

The spelling of 11927977 in words is "eleven million, nine hundred twenty-seven thousand, nine hundred seventy-seven".