67069697 has 2 divisors, whose sum is σ = 67069698. Its totient is φ = 67069696.

The previous prime is 67069669. The next prime is 67069711. The reversal of 67069697 is 79696076.

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., 43020481 + 24049216 = 6559^2 + 4904^2 .

It is a cyclic number.

It is not a de Polignac number, because 67069697 - 2⁸ = 67069441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67069397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33534848 + 33534849.

It is an arithmetic number, because the mean of its divisors is an integer number (33534849).

Almost surely, 2^67069697 is an apocalyptic number.

It is an amenable number.

67069697 is a deficient number, since it is larger than the sum of its proper divisors (1).

67069697 is an equidigital number, since it uses as much as digits as its factorization.

67069697 is an evil number, because the sum of its binary digits is even.

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

The square root of 67069697 is about 8189.6090871299. The cubic root of 67069697 is about 406.2955959237.

The spelling of 67069697 in words is "sixty-seven million, sixty-nine thousand, six hundred ninety-seven".