80603911 has 2 divisors, whose sum is σ = 80603912. Its totient is φ = 80603910.

The previous prime is 80603893. The next prime is 80603921. The reversal of 80603911 is 11930608.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80603911 - 2¹¹ = 80601863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80603911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80603921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40301955 + 40301956.

It is an arithmetic number, because the mean of its divisors is an integer number (40301956).

Almost surely, 2^80603911 is an apocalyptic number.

80603911 is a deficient number, since it is larger than the sum of its proper divisors (1).

80603911 is an equidigital number, since it uses as much as digits as its factorization.

80603911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 80603911 is about 8977.9680886045. The cubic root of 80603911 is about 431.9684601316.

The spelling of 80603911 in words is "eighty million, six hundred three thousand, nine hundred eleven".