2761729 has 2 divisors, whose sum is σ = 2761730. Its totient is φ = 2761728.

The previous prime is 2761727. The next prime is 2761741. The reversal of 2761729 is 9271672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 121104 = 1625^2 + 348^2 .

It is a cyclic number.

It is not a de Polignac number, because 2761729 - 2¹ = 2761727 is a prime.

Together with 2761727, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2761694 and 2761703.

It is not a weakly prime, because it can be changed into another prime (2761721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1380864 + 1380865.

It is an arithmetic number, because the mean of its divisors is an integer number (1380865).

2^2761729 is an apocalyptic number.

It is an amenable number.

2761729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2761729 is an equidigital number, since it uses as much as digits as its factorization.

2761729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 34.

The square root of 2761729 is about 1661.8450589631. The cubic root of 2761729 is about 140.3008665659.

The spelling of 2761729 in words is "two million, seven hundred sixty-one thousand, seven hundred twenty-nine".