68976449 has 2 divisors, whose sum is σ = 68976450. Its totient is φ = 68976448.

The previous prime is 68976437. The next prime is 68976451. The reversal of 68976449 is 94467986.

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., 61858225 + 7118224 = 7865^2 + 2668^2 .

It is a cyclic number.

It is not a de Polignac number, because 68976449 - 2¹⁶ = 68910913 is a prime.

Together with 68976451, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68976449.

It is not a weakly prime, because it can be changed into another prime (68976419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34488224 + 34488225.

It is an arithmetic number, because the mean of its divisors is an integer number (34488225).

Almost surely, 2^68976449 is an apocalyptic number.

It is an amenable number.

68976449 is a deficient number, since it is larger than the sum of its proper divisors (1).

68976449 is an equidigital number, since it uses as much as digits as its factorization.

68976449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 53.

The square root of 68976449 is about 8305.2061383207. The cubic root of 68976449 is about 410.1099229358.

The spelling of 68976449 in words is "sixty-eight million, nine hundred seventy-six thousand, four hundred forty-nine".