3116728 has 8 divisors (see below), whose sum is σ = 5843880. Its totient is φ = 1558360.

The previous prime is 3116719. The next prime is 3116747. The reversal of 3116728 is 8276113.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 3116696 and 3116705.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 194788 + ... + 194803.

It is an arithmetic number, because the mean of its divisors is an integer number (730485).

Almost surely, 2^3116728 is an apocalyptic number.

It is an amenable number.

3116728 is a deficient number, since it is larger than the sum of its proper divisors (2727152).

3116728 is a wasteful number, since it uses less digits than its factorization.

3116728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389597 (or 389593 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 3116728 is about 1765.4257276929. The cubic root of 3116728 is about 146.0717730551.

It can be divided in two parts, 3116 and 728, that added together give a square (3844 = 62²).

The spelling of 3116728 in words is "three million, one hundred sixteen thousand, seven hundred twenty-eight".