67000069 has 2 divisors, whose sum is σ = 67000070. Its totient is φ = 67000068.

The previous prime is 67000049. The next prime is 67000091. The reversal of 67000069 is 96000076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65011969 + 1988100 = 8063^2 + 1410^2 .

It is a cyclic number.

It is not a de Polignac number, because 67000069 - 2¹³ = 66991877 is a prime.

It is a super-2 number, since 2×67000069² = 8978018492009522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67000019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33500034 + 33500035.

It is an arithmetic number, because the mean of its divisors is an integer number (33500035).

Almost surely, 2^67000069 is an apocalyptic number.

It is an amenable number.

67000069 is a deficient number, since it is larger than the sum of its proper divisors (1).

67000069 is an equidigital number, since it uses as much as digits as its factorization.

67000069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 67000069 is about 8185.3569867172. The cubic root of 67000069 is about 406.1549494708.

The spelling of 67000069 in words is "sixty-seven million, sixty-nine", and thus it is an aban number and an uban number.