80073989 has 2 divisors, whose sum is σ = 80073990. Its totient is φ = 80073988.

The previous prime is 80073977. The next prime is 80073991. The reversal of 80073989 is 98937008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73530625 + 6543364 = 8575^2 + 2558^2 .

It is a cyclic number.

It is not a de Polignac number, because 80073989 - 2²⁴ = 63296773 is a prime.

Together with 80073991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80073949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40036994 + 40036995.

It is an arithmetic number, because the mean of its divisors is an integer number (40036995).

Almost surely, 2^80073989 is an apocalyptic number.

It is an amenable number.

80073989 is a deficient number, since it is larger than the sum of its proper divisors (1).

80073989 is an equidigital number, since it uses as much as digits as its factorization.

80073989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 80073989 is about 8948.4070649474. The cubic root of 80073989 is about 431.0197341323.

The spelling of 80073989 in words is "eighty million, seventy-three thousand, nine hundred eighty-nine".