67342817 has 2 divisors, whose sum is σ = 67342818. Its totient is φ = 67342816.

The previous prime is 67342789. The next prime is 67342823. The reversal of 67342817 is 71824376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66324736 + 1018081 = 8144^2 + 1009^2 .

It is a cyclic number.

It is not a de Polignac number, because 67342817 - 2⁶ = 67342753 is a prime.

It is not a weakly prime, because it can be changed into another prime (67342417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33671408 + 33671409.

It is an arithmetic number, because the mean of its divisors is an integer number (33671409).

Almost surely, 2^67342817 is an apocalyptic number.

It is an amenable number.

67342817 is a deficient number, since it is larger than the sum of its proper divisors (1).

67342817 is an equidigital number, since it uses as much as digits as its factorization.

67342817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 67342817 is about 8206.2669344837. The cubic root of 67342817 is about 406.8463521838.

The spelling of 67342817 in words is "sixty-seven million, three hundred forty-two thousand, eight hundred seventeen".