2770961 has 4 divisors (see below), whose sum is σ = 2775732. Its totient is φ = 2766192.

The previous prime is 2770939. The next prime is 2770973. The reversal of 2770961 is 1690772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2193361 + 577600 = 1481^2 + 760^2 .

It is a cyclic number.

It is not a de Polignac number, because 2770961 - 2¹⁰ = 2769937 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2770991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1370 + ... + 2723.

It is an arithmetic number, because the mean of its divisors is an integer number (693933).

2^2770961 is an apocalyptic number.

It is an amenable number.

2770961 is a deficient number, since it is larger than the sum of its proper divisors (4771).

2770961 is an equidigital number, since it uses as much as digits as its factorization.

2770961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 2770961 is about 1664.6203771431. The cubic root of 2770961 is about 140.4570268309.

The spelling of 2770961 in words is "two million, seven hundred seventy thousand, nine hundred sixty-one".