89824649 has 2 divisors, whose sum is σ = 89824650. Its totient is φ = 89824648.

The previous prime is 89824643. The next prime is 89824663. The reversal of 89824649 is 94642898.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83539600 + 6285049 = 9140^2 + 2507^2 .

It is a cyclic number.

It is not a de Polignac number, because 89824649 - 2⁴ = 89824633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89824597 and 89824606.

It is not a weakly prime, because it can be changed into another prime (89824643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44912324 + 44912325.

It is an arithmetic number, because the mean of its divisors is an integer number (44912325).

Almost surely, 2^89824649 is an apocalyptic number.

It is an amenable number.

89824649 is a deficient number, since it is larger than the sum of its proper divisors (1).

89824649 is an equidigital number, since it uses as much as digits as its factorization.

89824649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 50.

The square root of 89824649 is about 9477.5866653911. The cubic root of 89824649 is about 447.8492414315.

It can be divided in two parts, 8982 and 4649, that added together give a palindrome (13631).

The spelling of 89824649 in words is "eighty-nine million, eight hundred twenty-four thousand, six hundred forty-nine".