99549903 has 8 divisors (see below), whose sum is σ = 132942208. Its totient is φ = 66262104.

The previous prime is 99549899. The next prime is 99549907. The reversal of 99549903 is 30994599.

It is an interprime number because it is at equal distance from previous prime (99549899) and next prime (99549907).

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

It is not a de Polignac number, because 99549903 - 2² = 99549899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99549907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23875 + ... + 27732.

It is an arithmetic number, because the mean of its divisors is an integer number (16617776).

Almost surely, 2^99549903 is an apocalyptic number.

99549903 is a deficient number, since it is larger than the sum of its proper divisors (33392305).

99549903 is a wasteful number, since it uses less digits than its factorization.

99549903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52253.

The product of its (nonzero) digits is 393660, while the sum is 48.

The square root of 99549903 is about 9977.4697694355. The cubic root of 99549903 is about 463.4614475300.

The spelling of 99549903 in words is "ninety-nine million, five hundred forty-nine thousand, nine hundred three".