68267449 has 2 divisors, whose sum is σ = 68267450. Its totient is φ = 68267448.

The previous prime is 68267413. The next prime is 68267467. The reversal of 68267449 is 94476286.

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., 51194025 + 17073424 = 7155^2 + 4132^2 .

It is a cyclic number.

It is not a de Polignac number, because 68267449 - 2²¹ = 66170297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68267399 and 68267408.

It is not a weakly prime, because it can be changed into another prime (68267489) 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, 34133724 + 34133725.

It is an arithmetic number, because the mean of its divisors is an integer number (34133725).

Almost surely, 2^68267449 is an apocalyptic number.

It is an amenable number.

68267449 is a deficient number, since it is larger than the sum of its proper divisors (1).

68267449 is an equidigital number, since it uses as much as digits as its factorization.

68267449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 46.

The square root of 68267449 is about 8262.4118149606. The cubic root of 68267449 is about 408.6999251597.

The spelling of 68267449 in words is "sixty-eight million, two hundred sixty-seven thousand, four hundred forty-nine".