99790265 has 4 divisors (see below), whose sum is σ = 119748324. Its totient is φ = 79832208.

The previous prime is 99790253. The next prime is 99790277. The reversal of 99790265 is 56209799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56209799 = 3527 ⋅15937.

It is an interprime number because it is at equal distance from previous prime (99790253) and next prime (99790277).

It can be written as a sum of positive squares in 2 ways, for example, as 60715264 + 39075001 = 7792^2 + 6251^2 .

It is a cyclic number.

It is not a de Polignac number, because 99790265 - 2¹⁰ = 99789241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9979022 + ... + 9979031.

It is an arithmetic number, because the mean of its divisors is an integer number (29937081).

Almost surely, 2^99790265 is an apocalyptic number.

It is an amenable number.

99790265 is a deficient number, since it is larger than the sum of its proper divisors (19958059).

99790265 is a wasteful number, since it uses less digits than its factorization.

99790265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19958058.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 99790265 is about 9989.5077456299. The cubic root of 99790265 is about 463.8341550210.

The spelling of 99790265 in words is "ninety-nine million, seven hundred ninety thousand, two hundred sixty-five".