67275881 has 2 divisors, whose sum is σ = 67275882. Its totient is φ = 67275880.

The previous prime is 67275869. The next prime is 67275889. The reversal of 67275881 is 18857276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66275881 + 1000000 = 8141^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 67275881 - 2²⁶ = 167017 is a prime.

It is a super-2 number, since 2×67275881² = 9052088328652322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (67275889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33637940 + 33637941.

It is an arithmetic number, because the mean of its divisors is an integer number (33637941).

Almost surely, 2^67275881 is an apocalyptic number.

It is an amenable number.

67275881 is a deficient number, since it is larger than the sum of its proper divisors (1).

67275881 is an equidigital number, since it uses as much as digits as its factorization.

67275881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 44.

The square root of 67275881 is about 8202.1875740561. The cubic root of 67275881 is about 406.7115112988.

The spelling of 67275881 in words is "sixty-seven million, two hundred seventy-five thousand, eight hundred eighty-one".