5665812 has 12 divisors (see below), whose sum is σ = 13220256. Its totient is φ = 1888600.

The previous prime is 5665789. The next prime is 5665837. The reversal of 5665812 is 2185665.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236064 + ... + 236087.

It is an arithmetic number, because the mean of its divisors is an integer number (1101688).

Almost surely, 2^5665812 is an apocalyptic number.

It is an amenable number.

5665812 is an abundant number, since it is smaller than the sum of its proper divisors (7554444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5665812 is a wasteful number, since it uses less digits than its factorization.

5665812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472158 (or 472156 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 5665812 is about 2380.2966201715. The cubic root of 5665812 is about 178.2737445149.

The spelling of 5665812 in words is "five million, six hundred sixty-five thousand, eight hundred twelve".