89782241 has 2 divisors, whose sum is σ = 89782242. Its totient is φ = 89782240.

The previous prime is 89782223. The next prime is 89782243. The reversal of 89782241 is 14228798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62742241 + 27040000 = 7921^2 + 5200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89782241 is a prime.

Together with 89782243, 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 (89782243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44891120 + 44891121.

It is an arithmetic number, because the mean of its divisors is an integer number (44891121).

Almost surely, 2^89782241 is an apocalyptic number.

It is an amenable number.

89782241 is a deficient number, since it is larger than the sum of its proper divisors (1).

89782241 is an equidigital number, since it uses as much as digits as its factorization.

89782241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 41.

The square root of 89782241 is about 9475.3491228556. The cubic root of 89782241 is about 447.7787508311.

It can be divided in two parts, 897 and 82241, that added together give a palindrome (83138).

The spelling of 89782241 in words is "eighty-nine million, seven hundred eighty-two thousand, two hundred forty-one".