2766505 has 8 divisors (see below), whose sum is σ = 3794112. Its totient is φ = 1897008.

The previous prime is 2766493. The next prime is 2766521. The reversal of 2766505 is 5056672.

2766505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2766505 - 2¹⁵ = 2733737 is a prime.

2766505 is a lucky number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 39487 + ... + 39556.

It is an arithmetic number, because the mean of its divisors is an integer number (474264).

2^2766505 is an apocalyptic number.

It is an amenable number.

2766505 is a deficient number, since it is larger than the sum of its proper divisors (1027607).

2766505 is an equidigital number, since it uses as much as digits as its factorization.

2766505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79055.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 2766505 is about 1663.2813953147. The cubic root of 2766505 is about 140.3816964908.

The spelling of 2766505 in words is "two million, seven hundred sixty-six thousand, five hundred five".