2609872 has 10 divisors (see below), whose sum is σ = 5056658. Its totient is φ = 1304928.

The previous prime is 2609813. The next prime is 2609899. The reversal of 2609872 is 2789062.

2609872 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2322576 + 287296 = 1524^2 + 536^2 .

It is a super-3 number, since 3×2609872³ = 53330895845653868544, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 81543 + ... + 81574.

2^2609872 is an apocalyptic number.

It is an amenable number.

2609872 is a deficient number, since it is larger than the sum of its proper divisors (2446786).

2609872 is a wasteful number, since it uses less digits than its factorization.

2609872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163125 (or 163119 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 2609872 is about 1615.5098266492. The cubic root of 2609872 is about 137.6807012630.

It can be divided in two parts, 2609 and 872, that added together give a square (3481 = 59²).

The spelling of 2609872 in words is "two million, six hundred nine thousand, eight hundred seventy-two".