2021484987 has 12 divisors (see below), whose sum is σ = 2923883560. Its totient is φ = 1345828608.

The previous prime is 2021484979. The next prime is 2021484989. The reversal of 2021484987 is 7894841202.

It is not a de Polignac number, because 2021484987 - 2³ = 2021484979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021484989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145318 + ... + 158619.

Almost surely, 2^2021484987 is an apocalyptic number.

2021484987 is a deficient number, since it is larger than the sum of its proper divisors (902398573).

2021484987 is a wasteful number, since it uses less digits than its factorization.

2021484987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304682 (or 304679 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 2021484987 is about 44960.9273369667. The cubic root of 2021484987 is about 1264.4165550366.

The spelling of 2021484987 in words is "two billion, twenty-one million, four hundred eighty-four thousand, nine hundred eighty-seven".