8780081 has 2 divisors, whose sum is σ = 8780082. Its totient is φ = 8780080.

The previous prime is 8780021. The next prime is 8780087. The reversal of 8780081 is 1800878.

8780081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8439025 + 341056 = 2905^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 8780081 - 2⁶ = 8780017 is a prime.

It is a super-2 number, since 2×8780081² = 154179644733122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8780087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4390040 + 4390041.

It is an arithmetic number, because the mean of its divisors is an integer number (4390041).

Almost surely, 2^8780081 is an apocalyptic number.

It is an amenable number.

8780081 is a deficient number, since it is larger than the sum of its proper divisors (1).

8780081 is an equidigital number, since it uses as much as digits as its factorization.

8780081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 8780081 is about 2963.1201460623. The cubic root of 8780081 is about 206.3001327781.

The spelling of 8780081 in words is "eight million, seven hundred eighty thousand, eighty-one".