99320453 has 4 divisors (see below), whose sum is σ = 99341868. Its totient is φ = 99299040.

The previous prime is 99320399. The next prime is 99320483. The reversal of 99320453 is 35402399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35402399 = 3253 ⋅10883.

It can be written as a sum of positive squares in 2 ways, for example, as 2829124 + 96491329 = 1682^2 + 9823^2 .

It is a cyclic number.

It is not a de Polignac number, because 99320453 - 2¹⁴ = 99304069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99320483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518 + ... + 14103.

It is an arithmetic number, because the mean of its divisors is an integer number (24835467).

Almost surely, 2^99320453 is an apocalyptic number.

It is an amenable number.

99320453 is a deficient number, since it is larger than the sum of its proper divisors (21415).

99320453 is a wasteful number, since it uses less digits than its factorization.

99320453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21414.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 99320453 is about 9965.9647300199. The cubic root of 99320453 is about 463.1051001713.

The spelling of 99320453 in words is "ninety-nine million, three hundred twenty thousand, four hundred fifty-three".