78328883 has 2 divisors, whose sum is σ = 78328884. Its totient is φ = 78328882.

The previous prime is 78328871. The next prime is 78328903. The reversal of 78328883 is 38882387.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78328883 - 2⁴ = 78328867 is a prime.

It is a super-3 number, since 3×78328883³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78325883) 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, 39164441 + 39164442.

It is an arithmetic number, because the mean of its divisors is an integer number (39164442).

Almost surely, 2^78328883 is an apocalyptic number.

78328883 is a deficient number, since it is larger than the sum of its proper divisors (1).

78328883 is an equidigital number, since it uses as much as digits as its factorization.

78328883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 47.

The square root of 78328883 is about 8850.3606141219. The cubic root of 78328883 is about 427.8655410020.

The spelling of 78328883 in words is "seventy-eight million, three hundred twenty-eight thousand, eight hundred eighty-three".