2775764 has 12 divisors (see below), whose sum is σ = 5025300. Its totient is φ = 1339968.

The previous prime is 2775761. The next prime is 2775781. The reversal of 2775764 is 4675772.

2775764 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 1690000 + 1085764 = 1300^2 + 1042^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2775761) 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, 11849 + ... + 12080.

It is an arithmetic number, because the mean of its divisors is an integer number (418775).

2^2775764 is an apocalyptic number.

It is an amenable number.

2775764 is a deficient number, since it is larger than the sum of its proper divisors (2249536).

2775764 is a wasteful number, since it uses less digits than its factorization.

2775764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23962 (or 23960 counting only the distinct ones).

The product of its digits is 82320, while the sum is 38.

The square root of 2775764 is about 1666.0624238005. The cubic root of 2775764 is about 140.5381329523.

The spelling of 2775764 in words is "two million, seven hundred seventy-five thousand, seven hundred sixty-four".