2798717 has 4 divisors (see below), whose sum is σ = 2874396. Its totient is φ = 2723040.

The previous prime is 2798713. The next prime is 2798729. The reversal of 2798717 is 7178972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2709316 + 89401 = 1646^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 2798717 - 2² = 2798713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798713) 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 in 3 ways as a sum of consecutive naturals, for example, 37784 + ... + 37857.

It is an arithmetic number, because the mean of its divisors is an integer number (718599).

2^2798717 is an apocalyptic number.

It is an amenable number.

2798717 is a deficient number, since it is larger than the sum of its proper divisors (75679).

2798717 is an equidigital number, since it uses as much as digits as its factorization.

2798717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75678.

The product of its digits is 49392, while the sum is 41.

The square root of 2798717 is about 1672.9366395653. The cubic root of 2798717 is about 140.9244435326.

The spelling of 2798717 in words is "two million, seven hundred ninety-eight thousand, seven hundred seventeen".