78966011 has 2 divisors, whose sum is σ = 78966012. Its totient is φ = 78966010.

The previous prime is 78966007. The next prime is 78966053. The reversal of 78966011 is 11066987.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78966011 - 2² = 78966007 is a prime.

It is not a weakly prime, because it can be changed into another prime (78966001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39483005 + 39483006.

It is an arithmetic number, because the mean of its divisors is an integer number (39483006).

Almost surely, 2^78966011 is an apocalyptic number.

78966011 is a deficient number, since it is larger than the sum of its proper divisors (1).

78966011 is an equidigital number, since it uses as much as digits as its factorization.

78966011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 78966011 is about 8886.2821809799. The cubic root of 78966011 is about 429.0224974301.

The spelling of 78966011 in words is "seventy-eight million, nine hundred sixty-six thousand, eleven".