996949665 has 48 divisors (see below), whose sum is σ = 1857772800. Its totient is φ = 492984576.

The previous prime is 996949621. The next prime is 996949673. The reversal of 996949665 is 566949699.

It is not a de Polignac number, because 996949665 - 2⁷ = 996949537 is a prime.

It is a super-2 number, since 2×996949665² = 1987817269087224450, which contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 27781 + ... + 52589.

It is an arithmetic number, because the mean of its divisors is an integer number (38703600).

Almost surely, 2^996949665 is an apocalyptic number.

996949665 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

996949665 is a deficient number, since it is larger than the sum of its proper divisors (860823135).

996949665 is a wasteful number, since it uses less digits than its factorization.

996949665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24886 (or 24883 counting only the distinct ones).

The product of its digits is 28343520, while the sum is 63.

The square root of 996949665 is about 31574.5097349112. The cubic root of 996949665 is about 998.9821860729.

The spelling of 996949665 in words is "nine hundred ninety-six million, nine hundred forty-nine thousand, six hundred sixty-five".