67340641 has 2 divisors, whose sum is σ = 67340642. Its totient is φ = 67340640.

The previous prime is 67340633. The next prime is 67340659. The reversal of 67340641 is 14604376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40259025 + 27081616 = 6345^2 + 5204^2 .

It is a cyclic number.

It is not a de Polignac number, because 67340641 - 2³ = 67340633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67340671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33670320 + 33670321.

It is an arithmetic number, because the mean of its divisors is an integer number (33670321).

Almost surely, 2^67340641 is an apocalyptic number.

It is an amenable number.

67340641 is a deficient number, since it is larger than the sum of its proper divisors (1).

67340641 is an equidigital number, since it uses as much as digits as its factorization.

67340641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 67340641 is about 8206.1343518127. The cubic root of 67340641 is about 406.8419700921.

It can be divided in two parts, 673 and 40641, that added together give a palindrome (41314).

The spelling of 67340641 in words is "sixty-seven million, three hundred forty thousand, six hundred forty-one".