99893637773 has 2 divisors, whose sum is σ = 99893637774. Its totient is φ = 99893637772.

The previous prime is 99893637761. The next prime is 99893637827. The reversal of 99893637773 is 37773639899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98946106249 + 947531524 = 314557^2 + 30782^2 .

It is an emirp because it is prime and its reverse (37773639899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99893637773 - 2⁴ = 99893637757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99893637697 and 99893637706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99893627773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49946818886 + 49946818887.

It is an arithmetic number, because the mean of its divisors is an integer number (49946818887).

Almost surely, 2^99893637773 is an apocalyptic number.

It is an amenable number.

99893637773 is a deficient number, since it is larger than the sum of its proper divisors (1).

99893637773 is an equidigital number, since it uses as much as digits as its factorization.

99893637773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324060912, while the sum is 71.

The spelling of 99893637773 in words is "ninety-nine billion, eight hundred ninety-three million, six hundred thirty-seven thousand, seven hundred seventy-three".