2723828 has 12 divisors (see below), whose sum is σ = 4778340. Its totient is φ = 1358592.

The previous prime is 2723827. The next prime is 2723837. The reversal of 2723828 is 8283272.

It can be written as a sum of positive squares in 2 ways, for example, as 1350244 + 1373584 = 1162^2 + 1172^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2723794 and 2723803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2723827) 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, 2468 + ... + 3396.

It is an arithmetic number, because the mean of its divisors is an integer number (398195).

2^2723828 is an apocalyptic number.

It is an amenable number.

2723828 is a deficient number, since it is larger than the sum of its proper divisors (2054512).

2723828 is a wasteful number, since it uses less digits than its factorization.

2723828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1664 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 2723828 is about 1650.4023751801. The cubic root of 2723828 is about 139.6560946753.

The spelling of 2723828 in words is "two million, seven hundred twenty-three thousand, eight hundred twenty-eight".