80812603 has 2 divisors, whose sum is σ = 80812604. Its totient is φ = 80812602.

The previous prime is 80812597. The next prime is 80812619. The reversal of 80812603 is 30621808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80812603 - 2²¹ = 78715451 is a prime.

It is not a weakly prime, because it can be changed into another prime (80812663) 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, 40406301 + 40406302.

It is an arithmetic number, because the mean of its divisors is an integer number (40406302).

Almost surely, 2^80812603 is an apocalyptic number.

80812603 is a deficient number, since it is larger than the sum of its proper divisors (1).

80812603 is an equidigital number, since it uses as much as digits as its factorization.

80812603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 80812603 is about 8989.5830270375. The cubic root of 80812603 is about 432.3409427704.

The spelling of 80812603 in words is "eighty million, eight hundred twelve thousand, six hundred three".