2775641 has 8 divisors (see below), whose sum is σ = 3206304. Its totient is φ = 2374720.

The previous prime is 2775637. The next prime is 2775649. The reversal of 2775641 is 1465772.

2775641 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 2775641 - 2² = 2775637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2775598 and 2775607.

It is not an unprimeable number, because it can be changed into a prime (2775649) 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 7 ways as a sum of consecutive naturals, for example, 7235 + ... + 7608.

It is an arithmetic number, because the mean of its divisors is an integer number (400788).

2^2775641 is an apocalyptic number.

It is an amenable number.

2775641 is a deficient number, since it is larger than the sum of its proper divisors (430663).

2775641 is a wasteful number, since it uses less digits than its factorization.

2775641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14871.

The product of its digits is 11760, while the sum is 32.

The square root of 2775641 is about 1666.0255100088. The cubic root of 2775641 is about 140.5360570738.

The spelling of 2775641 in words is "two million, seven hundred seventy-five thousand, six hundred forty-one".