999805046 has 16 divisors (see below), whose sum is σ = 1541316480. Its totient is φ = 486051840.

The previous prime is 999805043. The next prime is 999805057. The reversal of 999805046 is 640508999.

It is a super-2 number, since 2×999805046² = 1999220260014124232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 999804985 and 999805003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999805043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126326 + ... + 134006.

It is an arithmetic number, because the mean of its divisors is an integer number (96332280).

Almost surely, 2^999805046 is an apocalyptic number.

999805046 is a deficient number, since it is larger than the sum of its proper divisors (541511434).

999805046 is a wasteful number, since it uses less digits than its factorization.

999805046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9479.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 999805046 is about 31619.6939580382. The cubic root of 999805046 is about 999.9350111099.

The spelling of 999805046 in words is "nine hundred ninety-nine million, eight hundred five thousand, forty-six".