99321605 has 8 divisors (see below), whose sum is σ = 119918112. Its totient is φ = 78969168.

The previous prime is 99321601. The next prime is 99321619. The reversal of 99321605 is 50612399.

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

It is a cyclic number.

It is not a de Polignac number, because 99321605 - 2² = 99321601 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 (99321601) 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, 60119 + ... + 61748.

It is an arithmetic number, because the mean of its divisors is an integer number (14989764).

Almost surely, 2^99321605 is an apocalyptic number.

It is an amenable number.

99321605 is a deficient number, since it is larger than the sum of its proper divisors (20596507).

99321605 is a wasteful number, since it uses less digits than its factorization.

99321605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122035.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 99321605 is about 9966.0225265649. The cubic root of 99321605 is about 463.1068906552.

The spelling of 99321605 in words is "ninety-nine million, three hundred twenty-one thousand, six hundred five".