2006765 has 8 divisors (see below), whose sum is σ = 2549880. Its totient is φ = 1510912.

The previous prime is 2006707. The next prime is 2006779. The reversal of 2006765 is 5676002.

It can be written as a sum of positive squares in 4 ways, for example, as 148996 + 1857769 = 386^2 + 1363^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2006765 - 2¹² = 2002669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11720 + ... + 11889.

It is an arithmetic number, because the mean of its divisors is an integer number (318735).

2^2006765 is an apocalyptic number.

It is an amenable number.

2006765 is a deficient number, since it is larger than the sum of its proper divisors (543115).

2006765 is a wasteful number, since it uses less digits than its factorization.

2006765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23631.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 2006765 is about 1416.6033319176. The cubic root of 2006765 is about 126.1340012199.

The spelling of 2006765 in words is "two million, six thousand, seven hundred sixty-five".