2821008 has 20 divisors (see below), whose sum is σ = 7287728. Its totient is φ = 940320.

The previous prime is 2821001. The next prime is 2821009. The reversal of 2821008 is 8001282.

It is a super-2 number, since 2×2821008² = 15916172272128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2821001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29338 + ... + 29433.

2^2821008 is an apocalyptic number.

It is an amenable number.

2821008 is an abundant number, since it is smaller than the sum of its proper divisors (4466720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2821008 is a wasteful number, since it uses less digits than its factorization.

2821008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58782 (or 58776 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 2821008 is about 1679.5856631920. The cubic root of 2821008 is about 141.2975958849.

The spelling of 2821008 in words is "two million, eight hundred twenty-one thousand, eight".