89087081 has 2 divisors, whose sum is σ = 89087082. Its totient is φ = 89087080.

The previous prime is 89087077. The next prime is 89087093. The reversal of 89087081 is 18078098.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66912400 + 22174681 = 8180^2 + 4709^2 .

It is a cyclic number.

It is not a de Polignac number, because 89087081 - 2² = 89087077 is a prime.

It is a super-2 number, since 2×89087081² = 15873016002201122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (89087041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44543540 + 44543541.

It is an arithmetic number, because the mean of its divisors is an integer number (44543541).

Almost surely, 2^89087081 is an apocalyptic number.

It is an amenable number.

89087081 is a deficient number, since it is larger than the sum of its proper divisors (1).

89087081 is an equidigital number, since it uses as much as digits as its factorization.

89087081 is an odious number, because the sum of its binary digits is odd.

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

The square root of 89087081 is about 9438.5952874355. The cubic root of 89087081 is about 446.6200779977.

The spelling of 89087081 in words is "eighty-nine million, eighty-seven thousand, eighty-one".