67906873 has 2 divisors, whose sum is σ = 67906874. Its totient is φ = 67906872.

The previous prime is 67906871. The next prime is 67906897. The reversal of 67906873 is 37860976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62299449 + 5607424 = 7893^2 + 2368^2 .

It is a cyclic number.

It is not a de Polignac number, because 67906873 - 2¹ = 67906871 is a prime.

It is a super-2 number, since 2×67906873² = 9222686801276258, which contains 22 as substring.

Together with 67906871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (67906871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33953436 + 33953437.

It is an arithmetic number, because the mean of its divisors is an integer number (33953437).

Almost surely, 2^67906873 is an apocalyptic number.

It is an amenable number.

67906873 is a deficient number, since it is larger than the sum of its proper divisors (1).

67906873 is an equidigital number, since it uses as much as digits as its factorization.

67906873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 67906873 is about 8240.5626628283. The cubic root of 67906873 is about 407.9790955104.

The spelling of 67906873 in words is "sixty-seven million, nine hundred six thousand, eight hundred seventy-three".