2798722 has 4 divisors (see below), whose sum is σ = 4198086. Its totient is φ = 1399360.

The previous prime is 2798713. The next prime is 2798729. The reversal of 2798722 is 2278972.

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

It can be written as a sum of positive squares in only one way, i.e., 2595321 + 203401 = 1611^2 + 451^2 .

It is not an unprimeable number, because it can be changed into a prime (2798729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699679 + ... + 699682.

2^2798722 is an apocalyptic number.

2798722 is a deficient number, since it is larger than the sum of its proper divisors (1399364).

2798722 is a wasteful number, since it uses less digits than its factorization.

2798722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399363.

The product of its digits is 28224, while the sum is 37.

The square root of 2798722 is about 1672.9381339428. The cubic root of 2798722 is about 140.9245274546.

The spelling of 2798722 in words is "two million, seven hundred ninety-eight thousand, seven hundred twenty-two".