80603009 has 2 divisors, whose sum is σ = 80603010. Its totient is φ = 80603008.

The previous prime is 80602937. The next prime is 80603041. The reversal of 80603009 is 90030608.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78712384 + 1890625 = 8872^2 + 1375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80603009 is a prime.

It is a Chen prime.

It is equal to p_4702526 and since 80603009 and 4702526 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (80603059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40301504 + 40301505.

It is an arithmetic number, because the mean of its divisors is an integer number (40301505).

Almost surely, 2^80603009 is an apocalyptic number.

It is an amenable number.

80603009 is a deficient number, since it is larger than the sum of its proper divisors (1).

80603009 is an equidigital number, since it uses as much as digits as its factorization.

80603009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 80603009 is about 8977.9178543803. The cubic root of 80603009 is about 431.9668488078.

The spelling of 80603009 in words is "eighty million, six hundred three thousand, nine".