99946549 has 2 divisors, whose sum is σ = 99946550. Its totient is φ = 99946548.

The previous prime is 99946541. The next prime is 99946589. The reversal of 99946549 is 94564999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70980625 + 28965924 = 8425^2 + 5382^2 .

It is a cyclic number.

It is not a de Polignac number, because 99946549 - 2³ = 99946541 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99946549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99946541) 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, 49973274 + 49973275.

It is an arithmetic number, because the mean of its divisors is an integer number (49973275).

Almost surely, 2^99946549 is an apocalyptic number.

It is an amenable number.

99946549 is a deficient number, since it is larger than the sum of its proper divisors (1).

99946549 is an equidigital number, since it uses as much as digits as its factorization.

99946549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3149280, while the sum is 55.

The square root of 99946549 is about 9997.3270927783. The cubic root of 99946549 is about 464.0761694341.

The spelling of 99946549 in words is "ninety-nine million, nine hundred forty-six thousand, five hundred forty-nine".