89819243 has 2 divisors, whose sum is σ = 89819244. Its totient is φ = 89819242.

The previous prime is 89819231. The next prime is 89819309. The reversal of 89819243 is 34291898.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89819243 - 2⁴ = 89819227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89819194 and 89819203.

It is not a weakly prime, because it can be changed into another prime (89819203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44909621 + 44909622.

It is an arithmetic number, because the mean of its divisors is an integer number (44909622).

Almost surely, 2^89819243 is an apocalyptic number.

89819243 is a deficient number, since it is larger than the sum of its proper divisors (1).

89819243 is an equidigital number, since it uses as much as digits as its factorization.

89819243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 89819243 is about 9477.3014619141. The cubic root of 89819243 is about 447.8402568094.

The spelling of 89819243 in words is "eighty-nine million, eight hundred nineteen thousand, two hundred forty-three".