2021608 has 16 divisors (see below), whose sum is σ = 3955680. Its totient is φ = 966768.

The previous prime is 2021599. The next prime is 2021609. The reversal of 2021608 is 8061202.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2021609) 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, 5310 + ... + 5677.

It is an arithmetic number, because the mean of its divisors is an integer number (247230).

2^2021608 is an apocalyptic number.

It is an amenable number.

2021608 is a deficient number, since it is larger than the sum of its proper divisors (1934072).

2021608 is a wasteful number, since it uses less digits than its factorization.

2021608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11016 (or 11012 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2021608 is about 1421.8326202475. The cubic root of 2021608 is about 126.4442202274. Note that the first 3 decimals are identical.

The spelling of 2021608 in words is "two million, twenty-one thousand, six hundred eight".