1000005994 has 16 divisors (see below), whose sum is σ = 1710418248. Its totient is φ = 434391552.

The previous prime is 1000005991. The next prime is 1000005997. The reversal of 1000005994 is 4995000001.

It is an interprime number because it is at equal distance from previous prime (1000005991) and next prime (1000005997).

It can be written as a sum of positive squares in 4 ways, for example, as 996222969 + 3783025 = 31563^2 + 1945^2 .

It is not an unprimeable number, because it can be changed into a prime (1000005991) 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 in 7 ways as a sum of consecutive naturals, for example, 1130787 + ... + 1131670.

Almost surely, 2^1000005994 is an apocalyptic number.

1000005994 is a deficient number, since it is larger than the sum of its proper divisors (710412254).

1000005994 is a wasteful number, since it uses less digits than its factorization.

1000005994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262489.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1000005994 is about 31622.8713750033. The cubic root of 1000005994 is about 1000.0019979960.

Adding to 1000005994 its reverse (4995000001), we get a palindrome (5995005995).

The spelling of 1000005994 in words is "one billion, five thousand, nine hundred ninety-four".