67875641 has 2 divisors, whose sum is σ = 67875642. Its totient is φ = 67875640.

The previous prime is 67875637. The next prime is 67875667. The reversal of 67875641 is 14657876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67305616 + 570025 = 8204^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 67875641 - 2² = 67875637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67875592 and 67875601.

It is not a weakly prime, because it can be changed into another prime (67805641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33937820 + 33937821.

It is an arithmetic number, because the mean of its divisors is an integer number (33937821).

Almost surely, 2^67875641 is an apocalyptic number.

It is an amenable number.

67875641 is a deficient number, since it is larger than the sum of its proper divisors (1).

67875641 is an equidigital number, since it uses as much as digits as its factorization.

67875641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 44.

The square root of 67875641 is about 8238.6674286562. The cubic root of 67875641 is about 407.9165394612.

The spelling of 67875641 in words is "sixty-seven million, eight hundred seventy-five thousand, six hundred forty-one".