2698739 has 2 divisors, whose sum is σ = 2698740. Its totient is φ = 2698738.

The previous prime is 2698727. The next prime is 2698753. The reversal of 2698739 is 9378962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2698739 - 2¹⁶ = 2633203 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2698739.

It is not a weakly prime, because it can be changed into another prime (2698789) 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, 1349369 + 1349370.

It is an arithmetic number, because the mean of its divisors is an integer number (1349370).

2^2698739 is an apocalyptic number.

2698739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2698739 is an equidigital number, since it uses as much as digits as its factorization.

2698739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The square root of 2698739 is about 1642.7839176228. The cubic root of 2698739 is about 139.2259836937.

The spelling of 2698739 in words is "two million, six hundred ninety-eight thousand, seven hundred thirty-nine".