2021008 has 20 divisors (see below), whose sum is σ = 4272048. Its totient is φ = 918560.

The previous prime is 2021003. The next prime is 2021009. The reversal of 2021008 is 8001202.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2021003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5566 + ... + 5917.

2^2021008 is an apocalyptic number.

It is an amenable number.

2021008 is an abundant number, since it is smaller than the sum of its proper divisors (2251040).

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

2021008 is a wasteful number, since it uses less digits than its factorization.

2021008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11502 (or 11496 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2021008 is about 1421.6216092899. The cubic root of 2021008 is about 126.4317097178.

The spelling of 2021008 in words is "two million, twenty-one thousand, eight".