7798249 has 2 divisors, whose sum is σ = 7798250. Its totient is φ = 7798248.

The previous prime is 7798201. The next prime is 7798253. The reversal of 7798249 is 9428977.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4161600 + 3636649 = 2040^2 + 1907^2 .

It is a cyclic number.

It is not a de Polignac number, because 7798249 - 2⁹ = 7797737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7798199 and 7798208.

It is not a weakly prime, because it can be changed into another prime (7798279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3899124 + 3899125.

It is an arithmetic number, because the mean of its divisors is an integer number (3899125).

Almost surely, 2^7798249 is an apocalyptic number.

It is an amenable number.

7798249 is a deficient number, since it is larger than the sum of its proper divisors (1).

7798249 is an equidigital number, since it uses as much as digits as its factorization.

7798249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 46.

The square root of 7798249 is about 2792.5345118727. The cubic root of 7798249 is about 198.3044071146.

The spelling of 7798249 in words is "seven million, seven hundred ninety-eight thousand, two hundred forty-nine".