2684423 has 4 divisors (see below), whose sum is σ = 3067920. Its totient is φ = 2300928.

The previous prime is 2684401. The next prime is 2684431. The reversal of 2684423 is 3244862.

2684423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3244862 = 2 ⋅1622431.

It is a de Polignac number, because none of the positive numbers 2^k-2684423 is a prime.

It is a super-2 number, since 2×2684423² = 14412253685858, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹³ + 6² + 8³ + 4² + 4¹⁰ + 2¹⁵ + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684023) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 191738 + ... + 191751.

It is an arithmetic number, because the mean of its divisors is an integer number (766980).

2^2684423 is an apocalyptic number.

2684423 is a deficient number, since it is larger than the sum of its proper divisors (383497).

2684423 is an equidigital number, since it uses as much as digits as its factorization.

2684423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383496.

The product of its digits is 9216, while the sum is 29.

The square root of 2684423 is about 1638.4208860973. The cubic root of 2684423 is about 138.9793630836.

The spelling of 2684423 in words is "two million, six hundred eighty-four thousand, four hundred twenty-three".