89672549 has 2 divisors, whose sum is σ = 89672550. Its totient is φ = 89672548.

The previous prime is 89672519. The next prime is 89672581. The reversal of 89672549 is 94527698.

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., 67535524 + 22137025 = 8218^2 + 4705^2 .

It is a cyclic number.

It is not a de Polignac number, because 89672549 - 2⁸ = 89672293 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 89672497 and 89672506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89672509) 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, 44836274 + 44836275.

It is an arithmetic number, because the mean of its divisors is an integer number (44836275).

Almost surely, 2^89672549 is an apocalyptic number.

It is an amenable number.

89672549 is a deficient number, since it is larger than the sum of its proper divisors (1).

89672549 is an equidigital number, since it uses as much as digits as its factorization.

89672549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 50.

The square root of 89672549 is about 9469.5590710444. The cubic root of 89672549 is about 447.5963177089.

The spelling of 89672549 in words is "eighty-nine million, six hundred seventy-two thousand, five hundred forty-nine".