67006969 has 2 divisors, whose sum is σ = 67006970. Its totient is φ = 67006968.

The previous prime is 67006967. The next prime is 67006993. The reversal of 67006969 is 96960076.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62647225 + 4359744 = 7915^2 + 2088^2 .

It is a cyclic number.

It is not a de Polignac number, because 67006969 - 2¹ = 67006967 is a prime.

It is a super-2 number, since 2×67006969² = 8979867789133922, which contains 22 as substring.

Together with 67006967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (67006967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33503484 + 33503485.

It is an arithmetic number, because the mean of its divisors is an integer number (33503485).

Almost surely, 2^67006969 is an apocalyptic number.

It is an amenable number.

67006969 is a deficient number, since it is larger than the sum of its proper divisors (1).

67006969 is an equidigital number, since it uses as much as digits as its factorization.

67006969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 67006969 is about 8185.7784602321. The cubic root of 67006969 is about 406.1688916104.

The spelling of 67006969 in words is "sixty-seven million, six thousand, nine hundred sixty-nine".