999965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Duffinian number.
It is a nialpdrome in base 10.
It is a congruent number.
2999965 is an apocalyptic number.
It is an amenable number.
999965 is a wasteful number, since it uses less digits than its factorization.
999965 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4699.
The square root of 999965 is about 999.9824998469. The cubic root of 999965 is about 99.9988333197.
The spelling of 999965 in words is "nine hundred ninety-nine thousand, nine hundred sixty-five".