78380683 has 2 divisors, whose sum is σ = 78380684. Its totient is φ = 78380682.

The previous prime is 78380677. The next prime is 78380737. The reversal of 78380683 is 38608387.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78380683 - 2⁵ = 78380651 is a prime.

It is a super-2 number, since 2×78380683² = 12287062935092978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78380623) 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, 39190341 + 39190342.

It is an arithmetic number, because the mean of its divisors is an integer number (39190342).

Almost surely, 2^78380683 is an apocalyptic number.

78380683 is a deficient number, since it is larger than the sum of its proper divisors (1).

78380683 is an equidigital number, since it uses as much as digits as its factorization.

78380683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 78380683 is about 8853.2865648865. The cubic root of 78380683 is about 427.9598380663.

The spelling of 78380683 in words is "seventy-eight million, three hundred eighty thousand, six hundred eighty-three".