2684863 has 8 divisors (see below), whose sum is σ = 2751840. Its totient is φ = 2618880.

The previous prime is 2684837. The next prime is 2684881. The reversal of 2684863 is 3684862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2684863 - 2²¹ = 587711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8478 + ... + 8788.

It is an arithmetic number, because the mean of its divisors is an integer number (343980).

2^2684863 is an apocalyptic number.

2684863 is a deficient number, since it is larger than the sum of its proper divisors (66977).

2684863 is an equidigital number, since it uses as much as digits as its factorization.

2684863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497.

The product of its digits is 55296, while the sum is 37.

The square root of 2684863 is about 1638.5551562276. Note that the first 3 decimals coincide. The cubic root of 2684863 is about 138.9869559728.

Subtracting 2684863 from its reverse (3684862), we obtain a palindrome (999999).

The spelling of 2684863 in words is "two million, six hundred eighty-four thousand, eight hundred sixty-three".