2805966 has 12 divisors (see below), whose sum is σ = 6079632. Its totient is φ = 935316.

The previous prime is 2805949. The next prime is 2805967. The reversal of 2805966 is 6695082.

2805966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2805966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805967) 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 5 ways as a sum of consecutive naturals, for example, 77926 + ... + 77961.

It is an arithmetic number, because the mean of its divisors is an integer number (506636).

2^2805966 is an apocalyptic number.

2805966 is an abundant number, since it is smaller than the sum of its proper divisors (3273666).

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

2805966 is a wasteful number, since it uses less digits than its factorization.

2805966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155895 (or 155892 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2805966 is about 1675.1017879520. The cubic root of 2805966 is about 141.0460088274.

The spelling of 2805966 in words is "two million, eight hundred five thousand, nine hundred sixty-six".