98566549 has 2 divisors, whose sum is σ = 98566550. Its totient is φ = 98566548.

The previous prime is 98566537. The next prime is 98566553. The reversal of 98566549 is 94566589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85192900 + 13373649 = 9230^2 + 3657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98566549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98566496 and 98566505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98566579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49283274 + 49283275.

It is an arithmetic number, because the mean of its divisors is an integer number (49283275).

Almost surely, 2^98566549 is an apocalyptic number.

It is an amenable number.

98566549 is a deficient number, since it is larger than the sum of its proper divisors (1).

98566549 is an equidigital number, since it uses as much as digits as its factorization.

98566549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 52.

The square root of 98566549 is about 9928.0687447257. The cubic root of 98566549 is about 461.9303709337.

The spelling of 98566549 in words is "ninety-eight million, five hundred sixty-six thousand, five hundred forty-nine".