999554996 has 12 divisors (see below), whose sum is σ = 1908241440. Its totient is φ = 454343160.

The previous prime is 999554989. The next prime is 999555019. The reversal of 999554996 is 699455999.

It is a super-2 number, since 2×999554996² = 1998220380057120032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11358536 + ... + 11358623.

It is an arithmetic number, because the mean of its divisors is an integer number (159020120).

Almost surely, 2^999554996 is an apocalyptic number.

It is an amenable number.

999554996 is a deficient number, since it is larger than the sum of its proper divisors (908686444).

999554996 is a wasteful number, since it uses less digits than its factorization.

999554996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22717174 (or 22717172 counting only the distinct ones).

The product of its digits is 35429400, while the sum is 65.

The square root of 999554996 is about 31615.7396876935. The cubic root of 999554996 is about 999.8516433247.

The spelling of 999554996 in words is "nine hundred ninety-nine million, five hundred fifty-four thousand, nine hundred ninety-six".