67247069 has 2 divisors, whose sum is σ = 67247070. Its totient is φ = 67247068.

The previous prime is 67247057. The next prime is 67247077. The reversal of 67247069 is 96074276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66504025 + 743044 = 8155^2 + 862^2 .

It is a cyclic number.

It is not a de Polignac number, because 67247069 - 2⁸ = 67246813 is a prime.

It is a super-2 number, since 2×67247069² = 9044336578181522, 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 (67247269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33623534 + 33623535.

It is an arithmetic number, because the mean of its divisors is an integer number (33623535).

Almost surely, 2^67247069 is an apocalyptic number.

It is an amenable number.

67247069 is a deficient number, since it is larger than the sum of its proper divisors (1).

67247069 is an equidigital number, since it uses as much as digits as its factorization.

67247069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 67247069 is about 8200.4310252571. The cubic root of 67247069 is about 406.6534427155.

The spelling of 67247069 in words is "sixty-seven million, two hundred forty-seven thousand, sixty-nine".