99802265 has 4 divisors (see below), whose sum is σ = 119762724. Its totient is φ = 79841808.

The previous prime is 99802247. The next prime is 99802273. The reversal of 99802265 is 56220899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56220899 = 7 ⋅8031557.

It can be written as a sum of positive squares in 2 ways, for example, as 25290841 + 74511424 = 5029^2 + 8632^2 .

It is a cyclic number.

It is not a de Polignac number, because 99802265 - 2¹⁰ = 99801241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9980222 + ... + 9980231.

It is an arithmetic number, because the mean of its divisors is an integer number (29940681).

Almost surely, 2^99802265 is an apocalyptic number.

It is an amenable number.

99802265 is a deficient number, since it is larger than the sum of its proper divisors (19960459).

99802265 is a wasteful number, since it uses less digits than its factorization.

99802265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19960458.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 99802265 is about 9990.1083577707. The cubic root of 99802265 is about 463.8527466367.

The spelling of 99802265 in words is "ninety-nine million, eight hundred two thousand, two hundred sixty-five".