2681823 has 8 divisors (see below), whose sum is σ = 3731328. Its totient is φ = 1710104.

The previous prime is 2681807. The next prime is 2681827. The reversal of 2681823 is 3281862.

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 2681823 - 2⁴ = 2681807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681827) 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, 19365 + ... + 19502.

It is an arithmetic number, because the mean of its divisors is an integer number (466416).

2^2681823 is an apocalyptic number.

2681823 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2681823 is a deficient number, since it is larger than the sum of its proper divisors (1049505).

2681823 is a wasteful number, since it uses less digits than its factorization.

2681823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38893.

The product of its digits is 4608, while the sum is 30.

The square root of 2681823 is about 1637.6272469643. The cubic root of 2681823 is about 138.9344790660.

It can be divided in two parts, 268182 and 3, that multiplied together give a triangular number (804546 = T₁₂₆₈).

The spelling of 2681823 in words is "two million, six hundred eighty-one thousand, eight hundred twenty-three".