99873853 has 2 divisors, whose sum is σ = 99873854. Its totient is φ = 99873852.

The previous prime is 99873811. The next prime is 99873859. The reversal of 99873853 is 35837899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95785369 + 4088484 = 9787^2 + 2022^2 .

It is an emirp because it is prime and its reverse (35837899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99873853 - 2¹⁷ = 99742781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99873853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99873859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49936926 + 49936927.

It is an arithmetic number, because the mean of its divisors is an integer number (49936927).

Almost surely, 2^99873853 is an apocalyptic number.

It is an amenable number.

99873853 is a deficient number, since it is larger than the sum of its proper divisors (1).

99873853 is an equidigital number, since it uses as much as digits as its factorization.

99873853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 99873853 is about 9993.6906596112. The cubic root of 99873853 is about 463.9636270661.

The spelling of 99873853 in words is "ninety-nine million, eight hundred seventy-three thousand, eight hundred fifty-three".