99954403 has 4 divisors (see below), whose sum is σ = 102278968. Its totient is φ = 97629840.

The previous prime is 99954331. The next prime is 99954409. The reversal of 99954403 is 30445999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99954403 - 2¹⁷ = 99823331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 2324521 = 99954403 / (9 + 9 + 9 + 5 + 4 + 4 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99954403.

It is not an unprimeable number, because it can be changed into a prime (99954409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162218 + ... + 1162303.

It is an arithmetic number, because the mean of its divisors is an integer number (25569742).

Almost surely, 2^99954403 is an apocalyptic number.

99954403 is a deficient number, since it is larger than the sum of its proper divisors (2324565).

99954403 is a wasteful number, since it uses less digits than its factorization.

99954403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324564.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 99954403 is about 9997.7198900549. The cubic root of 99954403 is about 464.0883251274.

The spelling of 99954403 in words is "ninety-nine million, nine hundred fifty-four thousand, four hundred three".