99543853 has 2 divisors, whose sum is σ = 99543854. Its totient is φ = 99543852.

The previous prime is 99543841. The next prime is 99543889. The reversal of 99543853 is 35834599.

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., 56746089 + 42797764 = 7533^2 + 6542^2 .

It is an emirp because it is prime and its reverse (35834599) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99543853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99543893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49771926 + 49771927.

It is an arithmetic number, because the mean of its divisors is an integer number (49771927).

Almost surely, 2^99543853 is an apocalyptic number.

It is an amenable number.

99543853 is a deficient number, since it is larger than the sum of its proper divisors (1).

99543853 is an equidigital number, since it uses as much as digits as its factorization.

99543853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 46.

The square root of 99543853 is about 9977.1665817506. The cubic root of 99543853 is about 463.4520586089.

The spelling of 99543853 in words is "ninety-nine million, five hundred forty-three thousand, eight hundred fifty-three".