67085867 has 2 divisors, whose sum is σ = 67085868. Its totient is φ = 67085866.

The previous prime is 67085861. The next prime is 67085869. The reversal of 67085867 is 76858076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67085867 - 2⁶ = 67085803 is a prime.

It is a super-2 number, since 2×67085867² = 9001027102283378, which contains 22 as substring.

Together with 67085869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67085861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33542933 + 33542934.

It is an arithmetic number, because the mean of its divisors is an integer number (33542934).

Almost surely, 2^67085867 is an apocalyptic number.

67085867 is a deficient number, since it is larger than the sum of its proper divisors (1).

67085867 is an equidigital number, since it uses as much as digits as its factorization.

67085867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 67085867 is about 8190.5962542418. The cubic root of 67085867 is about 406.3282449052.

The spelling of 67085867 in words is "sixty-seven million, eighty-five thousand, eight hundred sixty-seven".