99945474 has 8 divisors (see below), whose sum is σ = 199890960. Its totient is φ = 33315156.

The previous prime is 99945463. The next prime is 99945481. The reversal of 99945474 is 47454999.

It is a happy number.

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

99945474 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8328784 + ... + 8328795.

It is an arithmetic number, because the mean of its divisors is an integer number (24986370).

Almost surely, 2^99945474 is an apocalyptic number.

99945474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99945474 is a wasteful number, since it uses less digits than its factorization.

99945474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16657584.

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

The square root of 99945474 is about 9997.2733282631. The cubic root of 99945474 is about 464.0745055992.

The spelling of 99945474 in words is "ninety-nine million, nine hundred forty-five thousand, four hundred seventy-four".