2698728 has 32 divisors (see below), whose sum is σ = 7041600. Its totient is φ = 860288.

The previous prime is 2698727. The next prime is 2698739. The reversal of 2698728 is 8278962.

It is a happy number.

2698728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 2⁷ + 6⁴ + 9⁵ + 8 + 7⁵ + 2¹⁹ + 8⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 2698728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2698721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (220050).

2^2698728 is an apocalyptic number.

It is an amenable number.

2698728 is an abundant number, since it is smaller than the sum of its proper divisors (4342872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2698728 is a wasteful number, since it uses less digits than its factorization.

2698728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921 (or 4917 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 2698728 is about 1642.7805696440. The cubic root of 2698728 is about 139.2257945328.

The spelling of 2698728 in words is "two million, six hundred ninety-eight thousand, seven hundred twenty-eight".