99328297 has 4 divisors (see below), whose sum is σ = 105171156. Its totient is φ = 93485440.

The previous prime is 99328289. The next prime is 99328301. The reversal of 99328297 is 79282399.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65351056 + 33977241 = 8084^2 + 5829^2 .

It is a cyclic number.

It is not a de Polignac number, because 99328297 - 2³ = 99328289 is a prime.

It is a super-2 number, since 2×99328297² = 19732221169840418, which contains 22 as substring.

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 99328297.

It is not an unprimeable number, because it can be changed into a prime (99328217) 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, 2921404 + ... + 2921437.

It is an arithmetic number, because the mean of its divisors is an integer number (26292789).

Almost surely, 2^99328297 is an apocalyptic number.

It is an amenable number.

99328297 is a deficient number, since it is larger than the sum of its proper divisors (5842859).

99328297 is a wasteful number, since it uses less digits than its factorization.

99328297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5842858.

The product of its digits is 489888, while the sum is 49.

The square root of 99328297 is about 9966.3582616721. The cubic root of 99328297 is about 463.1172913521.

The spelling of 99328297 in words is "ninety-nine million, three hundred twenty-eight thousand, two hundred ninety-seven".