67796609 has 2 divisors, whose sum is σ = 67796610. Its totient is φ = 67796608.

The previous prime is 67796587. The next prime is 67796611. The reversal of 67796609 is 90669776.

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., 60217600 + 7579009 = 7760^2 + 2753^2 .

It is a cyclic number.

It is not a de Polignac number, because 67796609 - 2⁸ = 67796353 is a prime.

It is a Sophie Germain prime.

Together with 67796611, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (67796689) 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, 33898304 + 33898305.

It is an arithmetic number, because the mean of its divisors is an integer number (33898305).

Almost surely, 2^67796609 is an apocalyptic number.

It is an amenable number.

67796609 is a deficient number, since it is larger than the sum of its proper divisors (1).

67796609 is an equidigital number, since it uses as much as digits as its factorization.

67796609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 67796609 is about 8233.8696249091. The cubic root of 67796609 is about 407.7581567679.

The spelling of 67796609 in words is "sixty-seven million, seven hundred ninety-six thousand, six hundred nine".