80004389 has 2 divisors, whose sum is σ = 80004390. Its totient is φ = 80004388.

The previous prime is 80004341. The next prime is 80004391. The reversal of 80004389 is 98340008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51595489 + 28408900 = 7183^2 + 5330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80004389 is a prime.

Together with 80004391, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_4669610 and since 80004389 and 4669610 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80004289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40002194 + 40002195.

It is an arithmetic number, because the mean of its divisors is an integer number (40002195).

Almost surely, 2^80004389 is an apocalyptic number.

It is an amenable number.

80004389 is a deficient number, since it is larger than the sum of its proper divisors (1).

80004389 is an equidigital number, since it uses as much as digits as its factorization.

80004389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 80004389 is about 8944.5172591929. The cubic root of 80004389 is about 430.8948177072.

The spelling of 80004389 in words is "eighty million, four thousand, three hundred eighty-nine".