10778849 has 2 divisors, whose sum is σ = 10778850. Its totient is φ = 10778848.

The previous prime is 10778819. The next prime is 10778869. The reversal of 10778849 is 94887701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10758400 + 20449 = 3280^2 + 143^2 .

It is an emirp because it is prime and its reverse (94887701) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10778849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10778819) 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, 5389424 + 5389425.

It is an arithmetic number, because the mean of its divisors is an integer number (5389425).

Almost surely, 2^10778849 is an apocalyptic number.

It is an amenable number.

10778849 is a deficient number, since it is larger than the sum of its proper divisors (1).

10778849 is an equidigital number, since it uses as much as digits as its factorization.

10778849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 10778849 is about 3283.1157457513. The cubic root of 10778849 is about 220.8974975608.

The spelling of 10778849 in words is "ten million, seven hundred seventy-eight thousand, eight hundred forty-nine".