2718949 has 2 divisors, whose sum is σ = 2718950. Its totient is φ = 2718948.

The previous prime is 2718941. The next prime is 2718959. The reversal of 2718949 is 9498172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2502724 + 216225 = 1582^2 + 465^2 .

It is a cyclic number.

It is not a de Polignac number, because 2718949 - 2³ = 2718941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2718941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1359474 + 1359475.

It is an arithmetic number, because the mean of its divisors is an integer number (1359475).

2^2718949 is an apocalyptic number.

It is an amenable number.

2718949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2718949 is an equidigital number, since it uses as much as digits as its factorization.

2718949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 2718949 is about 1648.9235882842. The cubic root of 2718949 is about 139.5726594843.

The spelling of 2718949 in words is "two million, seven hundred eighteen thousand, nine hundred forty-nine".