99965000 has 40 divisors (see below), whose sum is σ = 234229710. Its totient is φ = 39984000.

The previous prime is 99964993. The next prime is 99965027. The reversal of 99965000 is 56999.

It can be written as a sum of positive squares in 5 ways, for example, as 2390116 + 97574884 = 1546^2 + 9878^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 10.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 4997 + ... + 14996.

Almost surely, 2^99965000 is an apocalyptic number.

It is an amenable number.

99965000 is an abundant number, since it is smaller than the sum of its proper divisors (134264710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99965000 is a wasteful number, since it uses less digits than its factorization.

99965000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20019 (or 20000 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 99965000 is about 9998.2498468482. The cubic root of 99965000 is about 464.1047251726.

The spelling of 99965000 in words is "ninety-nine million, nine hundred sixty-five thousand".