80438089 has 2 divisors, whose sum is σ = 80438090. Its totient is φ = 80438088.

The previous prime is 80438051. The next prime is 80438093. The reversal of 80438089 is 98083408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41062464 + 39375625 = 6408^2 + 6275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80438089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80438689) 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, 40219044 + 40219045.

It is an arithmetic number, because the mean of its divisors is an integer number (40219045).

Almost surely, 2^80438089 is an apocalyptic number.

It is an amenable number.

80438089 is a deficient number, since it is larger than the sum of its proper divisors (1).

80438089 is an equidigital number, since it uses as much as digits as its factorization.

80438089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 80438089 is about 8968.7283937022. The cubic root of 80438089 is about 431.6720351013.

The spelling of 80438089 in words is "eighty million, four hundred thirty-eight thousand, eighty-nine".