2816493 has 4 divisors (see below), whose sum is σ = 3755328. Its totient is φ = 1877660.

The previous prime is 2816459. The next prime is 2816501. The reversal of 2816493 is 3946182.

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 a cyclic number.

It is not a de Polignac number, because 2816493 - 2¹⁰ = 2815469 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 8⁷ + 1 + 6⁷ + 4⁹ + 9² + 3¹¹ .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2816453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469413 + ... + 469418.

It is an arithmetic number, because the mean of its divisors is an integer number (938832).

2^2816493 is an apocalyptic number.

It is an amenable number.

2816493 is a deficient number, since it is larger than the sum of its proper divisors (938835).

2816493 is an equidigital number, since it uses as much as digits as its factorization.

2816493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938834.

The product of its digits is 10368, while the sum is 33.

The square root of 2816493 is about 1678.2410434738. The cubic root of 2816493 is about 141.2221737548. Note that the first 3 decimals are identical.

The spelling of 2816493 in words is "two million, eight hundred sixteen thousand, four hundred ninety-three".