999802108 has 6 divisors (see below), whose sum is σ = 1749653696. Its totient is φ = 499901052.

The previous prime is 999802099. The next prime is 999802109. The reversal of 999802108 is 801208999.

It is a happy number.

It is a super-2 number, since 2×999802108² = 1999208510322487328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999802109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124975260 + ... + 124975267.

Almost surely, 2^999802108 is an apocalyptic number.

It is an amenable number.

999802108 is a deficient number, since it is larger than the sum of its proper divisors (749851588).

999802108 is a wasteful number, since it uses less digits than its factorization.

999802108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249950531 (or 249950529 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 999802108 is about 31619.6474996164. The cubic root of 999802108 is about 999.9340316483.

The spelling of 999802108 in words is "nine hundred ninety-nine million, eight hundred two thousand, one hundred eight".