99944547 has 8 divisors (see below), whose sum is σ = 141098256. Its totient is φ = 62710272.

The previous prime is 99944543. The next prime is 99944549. The reversal of 99944547 is 74544999.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99944547 - 2² = 99944543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1959697 = 99944547 / (9 + 9 + 9 + 4 + 4 + 5 + 4 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 99944547.

It is not an unprimeable number, because it can be changed into a prime (99944543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979798 + ... + 979899.

It is an arithmetic number, because the mean of its divisors is an integer number (17637282).

Almost surely, 2^99944547 is an apocalyptic number.

99944547 is a deficient number, since it is larger than the sum of its proper divisors (41153709).

99944547 is a wasteful number, since it uses less digits than its factorization.

99944547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959717.

The product of its digits is 1632960, while the sum is 51.

The square root of 99944547 is about 9997.2269655140. The cubic root of 99944547 is about 464.0730708223.

It can be divided in two parts, 9994 and 4547, that added together give a palindrome (14541).

The spelling of 99944547 in words is "ninety-nine million, nine hundred forty-four thousand, five hundred forty-seven".