89582921 has 2 divisors, whose sum is σ = 89582922. Its totient is φ = 89582920.

The previous prime is 89582917. The next prime is 89582923. The reversal of 89582921 is 12928598.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89567296 + 15625 = 9464^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 89582921 - 2² = 89582917 is a prime.

Together with 89582923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89582923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44791460 + 44791461.

It is an arithmetic number, because the mean of its divisors is an integer number (44791461).

Almost surely, 2^89582921 is an apocalyptic number.

It is an amenable number.

89582921 is a deficient number, since it is larger than the sum of its proper divisors (1).

89582921 is an equidigital number, since it uses as much as digits as its factorization.

89582921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 44.

The square root of 89582921 is about 9464.8254606200. The cubic root of 89582921 is about 447.4471433466.

The spelling of 89582921 in words is "eighty-nine million, five hundred eighty-two thousand, nine hundred twenty-one".