78080833 has 2 divisors, whose sum is σ = 78080834. Its totient is φ = 78080832.

The previous prime is 78080831. The next prime is 78080869. The reversal of 78080833 is 33808087.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65739664 + 12341169 = 8108^2 + 3513^2 .

It is a cyclic number.

It is not a de Polignac number, because 78080833 - 2¹ = 78080831 is a prime.

Together with 78080831, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 78080792 and 78080801.

It is not a weakly prime, because it can be changed into another prime (78080831) 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, 39040416 + 39040417.

It is an arithmetic number, because the mean of its divisors is an integer number (39040417).

Almost surely, 2^78080833 is an apocalyptic number.

It is an amenable number.

78080833 is a deficient number, since it is larger than the sum of its proper divisors (1).

78080833 is an equidigital number, since it uses as much as digits as its factorization.

78080833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 78080833 is about 8836.3359487969. The cubic root of 78080833 is about 427.4134120085.

The spelling of 78080833 in words is "seventy-eight million, eighty thousand, eight hundred thirty-three".