2723761 has 2 divisors, whose sum is σ = 2723762. Its totient is φ = 2723760.

The previous prime is 2723759. The next prime is 2723771. The reversal of 2723761 is 1673272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2702736 + 21025 = 1644^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2723761 - 2¹ = 2723759 is a prime.

Together with 2723759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2723701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361880 + 1361881.

It is an arithmetic number, because the mean of its divisors is an integer number (1361881).

2^2723761 is an apocalyptic number.

It is an amenable number.

2723761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2723761 is an equidigital number, since it uses as much as digits as its factorization.

2723761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 28.

The square root of 2723761 is about 1650.3820769749. The cubic root of 2723761 is about 139.6549495914.

The spelling of 2723761 in words is "two million, seven hundred twenty-three thousand, seven hundred sixty-one".