2721608 has 8 divisors (see below), whose sum is σ = 5103030. Its totient is φ = 1360800.

The previous prime is 2721577. The next prime is 2721619. The reversal of 2721608 is 8061272.

It can be written as a sum of positive squares in only one way, i.e., 2617924 + 103684 = 1618^2 + 322^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170093 + ... + 170108.

2^2721608 is an apocalyptic number.

It is an amenable number.

2721608 is a deficient number, since it is larger than the sum of its proper divisors (2381422).

2721608 is a wasteful number, since it uses less digits than its factorization.

2721608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340207 (or 340203 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2721608 is about 1649.7296748255. The cubic root of 2721608 is about 139.6181430868.

The spelling of 2721608 in words is "two million, seven hundred twenty-one thousand, six hundred eight".