96589781 has 2 divisors, whose sum is σ = 96589782. Its totient is φ = 96589780.

The previous prime is 96589777. The next prime is 96589783. The reversal of 96589781 is 18798569.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80389156 + 16200625 = 8966^2 + 4025^2 .

It is an emirp because it is prime and its reverse (18798569) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 96589781 - 2² = 96589777 is a prime.

It is a super-2 number, since 2×96589781² = 18659171587255922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 96589783, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (96589783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48294890 + 48294891.

It is an arithmetic number, because the mean of its divisors is an integer number (48294891).

Almost surely, 2^96589781 is an apocalyptic number.

It is an amenable number.

96589781 is a deficient number, since it is larger than the sum of its proper divisors (1).

96589781 is an equidigital number, since it uses as much as digits as its factorization.

96589781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 53.

The square root of 96589781 is about 9828.0100223799. The cubic root of 96589781 is about 458.8214648593.

The spelling of 96589781 in words is "ninety-six million, five hundred eighty-nine thousand, seven hundred eighty-one".