2689012 has 12 divisors (see below), whose sum is σ = 4833220. Its totient is φ = 1308096.

The previous prime is 2689007. The next prime is 2689019. The reversal of 2689012 is 2109862.

It is a happy number.

2689012 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 2 ways, for example, as 1425636 + 1263376 = 1194^2 + 1124^2 .

It is a super-2 number, since 2×2689012² = 14461571072288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689019) 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 in 3 ways as a sum of consecutive naturals, for example, 8937 + ... + 9232.

2^2689012 is an apocalyptic number.

It is an amenable number.

2689012 is a deficient number, since it is larger than the sum of its proper divisors (2144208).

2689012 is a wasteful number, since it uses less digits than its factorization.

2689012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18210 (or 18208 counting only the distinct ones).

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

The square root of 2689012 is about 1639.8207219083. The cubic root of 2689012 is about 139.0585127081.

The spelling of 2689012 in words is "two million, six hundred eighty-nine thousand, twelve".