999900652 has 6 divisors (see below), whose sum is σ = 1749826148. Its totient is φ = 499950324.

The previous prime is 999900647. The next prime is 999900659. The reversal of 999900652 is 256009999.

It is a junction number, because it is equal to n+sod(n) for n = 999900596 and 999900605.

It is not an unprimeable number, because it can be changed into a prime (999900659) by changing a digit.

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 as a sum of consecutive naturals, namely, 124987578 + ... + 124987585.

Almost surely, 2^999900652 is an apocalyptic number.

It is an amenable number.

999900652 is a deficient number, since it is larger than the sum of its proper divisors (749925496).

999900652 is a wasteful number, since it uses less digits than its factorization.

999900652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249975167 (or 249975165 counting only the distinct ones).

The product of its (nonzero) digits is 393660, while the sum is 49.

The square root of 999900652 is about 31621.2057328622. The cubic root of 999900652 is about 999.9668829033.

The spelling of 999900652 in words is "nine hundred ninety-nine million, nine hundred thousand, six hundred fifty-two".