80789081 has 2 divisors, whose sum is σ = 80789082. Its totient is φ = 80789080.

The previous prime is 80789057. The next prime is 80789161. The reversal of 80789081 is 18098708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54523456 + 26265625 = 7384^2 + 5125^2 .

It is a cyclic number.

It is not a de Polignac number, because 80789081 - 2¹⁴ = 80772697 is a prime.

It is a super-2 number, since 2×80789081² = 13053751217649122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80789021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40394540 + 40394541.

It is an arithmetic number, because the mean of its divisors is an integer number (40394541).

Almost surely, 2^80789081 is an apocalyptic number.

It is an amenable number.

80789081 is a deficient number, since it is larger than the sum of its proper divisors (1).

80789081 is an equidigital number, since it uses as much as digits as its factorization.

80789081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 41.

The square root of 80789081 is about 8988.2746397738. The cubic root of 80789081 is about 432.2989917623.

The spelling of 80789081 in words is "eighty million, seven hundred eighty-nine thousand, eighty-one".