99331603 has 4 divisors (see below), whose sum is σ = 113521840. Its totient is φ = 85141368.

The previous prime is 99331597. The next prime is 99331621. The reversal of 99331603 is 30613399.

It is a happy number.

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 99331603 - 2⁹ = 99331091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99331693) 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, 7095108 + ... + 7095121.

It is an arithmetic number, because the mean of its divisors is an integer number (28380460).

Almost surely, 2^99331603 is an apocalyptic number.

99331603 is a deficient number, since it is larger than the sum of its proper divisors (14190237).

99331603 is a wasteful number, since it uses less digits than its factorization.

99331603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14190236.

The product of its (nonzero) digits is 13122, while the sum is 34.

The square root of 99331603 is about 9966.5241182671. The cubic root of 99331603 is about 463.1224293601.

The spelling of 99331603 in words is "ninety-nine million, three hundred thirty-one thousand, six hundred three".