2816481 has 4 divisors (see below), whose sum is σ = 3755312. Its totient is φ = 1877652.

The previous prime is 2816459. The next prime is 2816501. The reversal of 2816481 is 1846182.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2816481 - 2⁷ = 2816353 is a prime.

It is a super-2 number, since 2×2816481² = 15865130446722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2816581) 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, 469411 + ... + 469416.

It is an arithmetic number, because the mean of its divisors is an integer number (938828).

2^2816481 is an apocalyptic number.

It is an amenable number.

2816481 is a deficient number, since it is larger than the sum of its proper divisors (938831).

2816481 is an equidigital number, since it uses as much as digits as its factorization.

2816481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938830.

The product of its digits is 3072, while the sum is 30.

The square root of 2816481 is about 1678.2374682982. The cubic root of 2816481 is about 141.2219731899.

Subtracting from 2816481 its reverse (1846182), we obtain a cube (970299 = 99³).

The spelling of 2816481 in words is "two million, eight hundred sixteen thousand, four hundred eighty-one".