999002006 has 4 divisors (see below), whose sum is σ = 1498503012. Its totient is φ = 499501002.

The previous prime is 999001999. The next prime is 999002051. The reversal of 999002006 is 600200999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 600200999 = 79 ⋅7597481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249750500 + ... + 249750503.

It is an arithmetic number, because the mean of its divisors is an integer number (374625753).

Almost surely, 2^999002006 is an apocalyptic number.

999002006 is a deficient number, since it is larger than the sum of its proper divisors (499501006).

999002006 is a wasteful number, since it uses less digits than its factorization.

999002006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499501005.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 999002006 is about 31606.9929920579. The cubic root of 999002006 is about 999.6672246062.

The spelling of 999002006 in words is "nine hundred ninety-nine million, two thousand, six".