67896979 has 2 divisors, whose sum is σ = 67896980. Its totient is φ = 67896978.

The previous prime is 67896977. The next prime is 67897001. The reversal of 67896979 is 97969876.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67896979 - 2¹ = 67896977 is a prime.

Together with 67896977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (67896971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33948489 + 33948490.

It is an arithmetic number, because the mean of its divisors is an integer number (33948490).

Almost surely, 2^67896979 is an apocalyptic number.

67896979 is a deficient number, since it is larger than the sum of its proper divisors (1).

67896979 is an equidigital number, since it uses as much as digits as its factorization.

67896979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10287648, while the sum is 61.

The square root of 67896979 is about 8239.9623178750. The cubic root of 67896979 is about 407.9592804261.

The spelling of 67896979 in words is "sixty-seven million, eight hundred ninety-six thousand, nine hundred seventy-nine".