89198449 has 2 divisors, whose sum is σ = 89198450. Its totient is φ = 89198448.

The previous prime is 89198443. The next prime is 89198489. The reversal of 89198449 is 94489198.

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., 57760000 + 31438449 = 7600^2 + 5607^2 .

It is a cyclic number.

It is not a de Polignac number, because 89198449 - 2³ = 89198441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89198396 and 89198405.

It is not a weakly prime, because it can be changed into another prime (89198441) 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, 44599224 + 44599225.

It is an arithmetic number, because the mean of its divisors is an integer number (44599225).

Almost surely, 2^89198449 is an apocalyptic number.

It is an amenable number.

89198449 is a deficient number, since it is larger than the sum of its proper divisors (1).

89198449 is an equidigital number, since it uses as much as digits as its factorization.

89198449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 52.

The square root of 89198449 is about 9444.4930515089. The cubic root of 89198449 is about 446.8061074882.

The spelling of 89198449 in words is "eighty-nine million, one hundred ninety-eight thousand, four hundred forty-nine".