2728726 has 64 divisors (see below), whose sum is σ = 5806080.
Its totient is φ = 927360.
The previous prime is 2728711. The next prime is 2728741. The reversal of 2728726 is 6278272.
It can be divided in two parts, 272 and 8726, that added together give a palindrome (8998).
It is an interprime number because it is at equal distance from previous prime (2728711) and next prime (2728741).
It is a d-powerful number, because it can be written as 29 + 7 + 219 + 8 + 7 + 219 + 68 .
Together with 3077354 it forms an amicable pair
It is a junction number, because it is equal to n+sod(n) for n = 2728691 and 2728700.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58035 + ... + 58081.
It is an arithmetic number, because the mean of its divisors is an integer number (90720).
22728726 is an apocalyptic number.
2728726 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
2728726 is an abundant number, since it is smaller than the sum of its proper divisors (3077354).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2728726 is a wasteful number, since it uses less digits than its factorization.
2728726 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 109.
The product of its digits is 18816, while the sum is 34.
The square root of 2728726 is about 1651.8855892585.
The cubic root of 2728726 is about 139.7397546260.
The spelling of 2728726 in words is "two million, seven hundred twenty-eight thousand, seven hundred twenty-six".