11778049 has 2 divisors, whose sum is σ = 11778050. Its totient is φ = 11778048.

The previous prime is 11778007. The next prime is 11778071. The reversal of 11778049 is 94087711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6051600 + 5726449 = 2460^2 + 2393^2 .

It is an emirp because it is prime and its reverse (94087711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11778049 - 2⁷ = 11777921 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11777999 and 11778017.

It is not a weakly prime, because it can be changed into another prime (11778149) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5889024 + 5889025.

It is an arithmetic number, because the mean of its divisors is an integer number (5889025).

Almost surely, 2^11778049 is an apocalyptic number.

It is an amenable number.

11778049 is a deficient number, since it is larger than the sum of its proper divisors (1).

11778049 is an equidigital number, since it uses as much as digits as its factorization.

11778049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 11778049 is about 3431.9162285813. The cubic root of 11778049 is about 227.5225530111.

The spelling of 11778049 in words is "eleven million, seven hundred seventy-eight thousand, forty-nine".