99680265 has 48 divisors (see below), whose sum is σ = 184064400. Its totient is φ = 49729536.

The previous prime is 99680249. The next prime is 99680281. The reversal of 99680265 is 56208699.

It is an interprime number because it is at equal distance from previous prime (99680249) and next prime (99680281).

It can be written as a sum of positive squares in 8 ways, for example, as 2322576 + 97357689 = 1524^2 + 9867^2 .

It is not a de Polignac number, because 99680265 - 2⁴ = 99680249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99680265.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174901 + ... + 175469.

It is an arithmetic number, because the mean of its divisors is an integer number (3834675).

Almost surely, 2^99680265 is an apocalyptic number.

It is an amenable number.

99680265 is a deficient number, since it is larger than the sum of its proper divisors (84384135).

99680265 is a wasteful number, since it uses less digits than its factorization.

99680265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 99680265 is about 9984.0004507211. Note that the first 3 decimals coincide. The cubic root of 99680265 is about 463.6636623855.

The spelling of 99680265 in words is "ninety-nine million, six hundred eighty thousand, two hundred sixty-five".