99853823 has 2 divisors, whose sum is σ = 99853824. Its totient is φ = 99853822.

The previous prime is 99853813. The next prime is 99853841. The reversal of 99853823 is 32835899.

It is a weak prime.

It is an emirp because it is prime and its reverse (32835899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99853823 - 2⁴ = 99853807 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99853813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49926911 + 49926912.

It is an arithmetic number, because the mean of its divisors is an integer number (49926912).

Almost surely, 2^99853823 is an apocalyptic number.

99853823 is a deficient number, since it is larger than the sum of its proper divisors (1).

99853823 is an equidigital number, since it uses as much as digits as its factorization.

99853823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 47.

The square root of 99853823 is about 9992.6884770816. The cubic root of 99853823 is about 463.9326085612.

The spelling of 99853823 in words is "ninety-nine million, eight hundred fifty-three thousand, eight hundred twenty-three".