89080729 has 2 divisors, whose sum is σ = 89080730. Its totient is φ = 89080728.

The previous prime is 89080703. The next prime is 89080751. The reversal of 89080729 is 92708098.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89019225 + 61504 = 9435^2 + 248^2 .

It is a cyclic number.

It is not a de Polignac number, because 89080729 - 2⁷ = 89080601 is a prime.

It is not a weakly prime, because it can be changed into another prime (89080769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44540364 + 44540365.

It is an arithmetic number, because the mean of its divisors is an integer number (44540365).

Almost surely, 2^89080729 is an apocalyptic number.

It is an amenable number.

89080729 is a deficient number, since it is larger than the sum of its proper divisors (1).

89080729 is an equidigital number, since it uses as much as digits as its factorization.

89080729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 89080729 is about 9438.2587906880. The cubic root of 89080729 is about 446.6094629226.

The spelling of 89080729 in words is "eighty-nine million, eighty thousand, seven hundred twenty-nine".