80787503 has 2 divisors, whose sum is σ = 80787504. Its totient is φ = 80787502.

The previous prime is 80787493. The next prime is 80787521. The reversal of 80787503 is 30578708.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80787503 - 2¹⁰ = 80786479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80787103) 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, 40393751 + 40393752.

It is an arithmetic number, because the mean of its divisors is an integer number (40393752).

Almost surely, 2^80787503 is an apocalyptic number.

80787503 is a deficient number, since it is larger than the sum of its proper divisors (1).

80787503 is an equidigital number, since it uses as much as digits as its factorization.

80787503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 80787503 is about 8988.1868583158. The cubic root of 80787503 is about 432.2961771400.

The spelling of 80787503 in words is "eighty million, seven hundred eighty-seven thousand, five hundred three".