2831216 has 10 divisors (see below), whose sum is σ = 5485512. Its totient is φ = 1415600.

The previous prime is 2831189. The next prime is 2831221. The reversal of 2831216 is 6121382.

2831216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2831191 and 2831200.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 88460 + ... + 88491.

2^2831216 is an apocalyptic number.

It is an amenable number.

2831216 is a deficient number, since it is larger than the sum of its proper divisors (2654296).

2831216 is a wasteful number, since it uses less digits than its factorization.

2831216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176959 (or 176953 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 2831216 is about 1682.6217637960. The cubic root of 2831216 is about 141.4678222228.

Adding to 2831216 its reverse (6121382), we get a palindrome (8952598).

The spelling of 2831216 in words is "two million, eight hundred thirty-one thousand, two hundred sixteen".