999963000343 has 8 divisors (see below), whose sum is σ = 1052610196400. Its totient is φ = 947317560768.

The previous prime is 999963000317. The next prime is 999963000353. The reversal of 999963000343 is 343000369999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 999963000343 - 2³³ = 991373065751 is a prime.

It is the 999982-nd Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999963000353) by changing a digit.

It is a nontrivial repunit in base 999981.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822403 + ... + 1635931.

It is an arithmetic number, because the mean of its divisors is an integer number (131576274550).

Almost surely, 2^999963000343 is an apocalyptic number.

999963000343 is a deficient number, since it is larger than the sum of its proper divisors (52647196057).

999963000343 is a wasteful number, since it uses less digits than its factorization.

999963000343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878241.

The product of its (nonzero) digits is 4251528, while the sum is 55.

The spelling of 999963000343 in words is "nine hundred ninety-nine billion, nine hundred sixty-three million, three hundred forty-three", and thus it is an aban number.