99843705 has 32 divisors (see below), whose sum is σ = 191157120. Its totient is φ = 49152960.

The previous prime is 99843697. The next prime is 99843719. The reversal of 99843705 is 50734899.

It is not a de Polignac number, because 99843705 - 2³ = 99843697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26691 + ... + 30200.

It is an arithmetic number, because the mean of its divisors is an integer number (5973660).

Almost surely, 2^99843705 is an apocalyptic number.

It is an amenable number.

99843705 is a deficient number, since it is larger than the sum of its proper divisors (91313415).

99843705 is a wasteful number, since it uses less digits than its factorization.

99843705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56918 (or 56912 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 99843705 is about 9992.1821940955. The cubic root of 99843705 is about 463.9169382258.

It can be divided in two parts, 9984 and 3705, that added together give a square (13689 = 117²).

The spelling of 99843705 in words is "ninety-nine million, eight hundred forty-three thousand, seven hundred five".