80783767 has 2 divisors, whose sum is σ = 80783768. Its totient is φ = 80783766.

The previous prime is 80783761. The next prime is 80783837. The reversal of 80783767 is 76738708.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80783767 - 2²³ = 72395159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80783761) 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, 40391883 + 40391884.

It is an arithmetic number, because the mean of its divisors is an integer number (40391884).

Almost surely, 2^80783767 is an apocalyptic number.

80783767 is a deficient number, since it is larger than the sum of its proper divisors (1).

80783767 is an equidigital number, since it uses as much as digits as its factorization.

80783767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 80783767 is about 8987.9790275679. The cubic root of 80783767 is about 432.2895132240.

The spelling of 80783767 in words is "eighty million, seven hundred eighty-three thousand, seven hundred sixty-seven".