2798647 has 2 divisors, whose sum is σ = 2798648. Its totient is φ = 2798646.

The previous prime is 2798641. The next prime is 2798651. The reversal of 2798647 is 7468972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2798647 - 2³ = 2798639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2798641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399323 + 1399324.

It is an arithmetic number, because the mean of its divisors is an integer number (1399324).

2^2798647 is an apocalyptic number.

2798647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2798647 is an equidigital number, since it uses as much as digits as its factorization.

2798647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The square root of 2798647 is about 1672.9157181400. The cubic root of 2798647 is about 140.9232686141.

The spelling of 2798647 in words is "two million, seven hundred ninety-eight thousand, six hundred forty-seven".