2756749 has 2 divisors, whose sum is σ = 2756750. Its totient is φ = 2756748.

The previous prime is 2756731. The next prime is 2756753. The reversal of 2756749 is 9476572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2418025 + 338724 = 1555^2 + 582^2 .

It is a cyclic number.

It is not a de Polignac number, because 2756749 - 2¹¹ = 2754701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2756249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378374 + 1378375.

It is an arithmetic number, because the mean of its divisors is an integer number (1378375).

2^2756749 is an apocalyptic number.

It is an amenable number.

2756749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2756749 is an equidigital number, since it uses as much as digits as its factorization.

2756749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 40.

The square root of 2756749 is about 1660.3460482683. The cubic root of 2756749 is about 140.2164848006.

The spelling of 2756749 in words is "two million, seven hundred fifty-six thousand, seven hundred forty-nine".