99843544 has 16 divisors (see below), whose sum is σ = 187450200. Its totient is φ = 49856832.

The previous prime is 99843539. The next prime is 99843547. The reversal of 99843544 is 44534899.

It is a junction number, because it is equal to n+sod(n) for n = 99843494 and 99843503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99843547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242 + ... + 14185.

Almost surely, 2^99843544 is an apocalyptic number.

It is an amenable number.

99843544 is a deficient number, since it is larger than the sum of its proper divisors (87606656).

99843544 is a wasteful number, since it uses less digits than its factorization.

99843544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16242 (or 16238 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 99843544 is about 9992.1741377940. The cubic root of 99843544 is about 463.9166888672.

The spelling of 99843544 in words is "ninety-nine million, eight hundred forty-three thousand, five hundred forty-four".