2609812 has 6 divisors (see below), whose sum is σ = 4567178. Its totient is φ = 1304904.

The previous prime is 2609809. The next prime is 2609813. The reversal of 2609812 is 2189062.

It is a happy number.

2609812 is digitally balanced in base 2, because in such base 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., 1430416 + 1179396 = 1196^2 + 1086^2 .

It is a super-2 number, since 2×2609812² = 13622237350688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609813) 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 as a sum of consecutive naturals, namely, 326223 + ... + 326230.

2^2609812 is an apocalyptic number.

It is an amenable number.

2609812 is a deficient number, since it is larger than the sum of its proper divisors (1957366).

2609812 is a wasteful number, since it uses less digits than its factorization.

2609812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652457 (or 652455 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2609812 is about 1615.4912565533. The cubic root of 2609812 is about 137.6796461786.

The spelling of 2609812 in words is "two million, six hundred nine thousand, eight hundred twelve".