2788349 has 2 divisors, whose sum is σ = 2788350. Its totient is φ = 2788348.

The previous prime is 2788343. The next prime is 2788367. The reversal of 2788349 is 9438872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2592100 + 196249 = 1610^2 + 443^2 .

It is a cyclic number.

It is not a de Polignac number, because 2788349 - 2⁴ = 2788333 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 7⁶ + 8⁵ + 8⁷ + 3³ + 4⁷ + 9² .

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2788343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394174 + 1394175.

It is an arithmetic number, because the mean of its divisors is an integer number (1394175).

2^2788349 is an apocalyptic number.

It is an amenable number.

2788349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2788349 is an equidigital number, since it uses as much as digits as its factorization.

2788349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 2788349 is about 1669.8350217911. The cubic root of 2788349 is about 140.7502074332.

The spelling of 2788349 in words is "two million, seven hundred eighty-eight thousand, three hundred forty-nine".