78304067 has 2 divisors, whose sum is σ = 78304068. Its totient is φ = 78304066.

The previous prime is 78304049. The next prime is 78304097. The reversal of 78304067 is 76040387.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78304067 - 2⁸ = 78303811 is a prime.

It is a super-2 number, since 2×78304067² = 12263053817480978, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78304097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39152033 + 39152034.

It is an arithmetic number, because the mean of its divisors is an integer number (39152034).

Almost surely, 2^78304067 is an apocalyptic number.

78304067 is a deficient number, since it is larger than the sum of its proper divisors (1).

78304067 is an equidigital number, since it uses as much as digits as its factorization.

78304067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 78304067 is about 8848.9585262900. The cubic root of 78304067 is about 427.8203510611.

The spelling of 78304067 in words is "seventy-eight million, three hundred four thousand, sixty-seven".