2872823 has 2 divisors, whose sum is σ = 2872824. Its totient is φ = 2872822.

The previous prime is 2872817. The next prime is 2872853. The reversal of 2872823 is 3282782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2872823 - 2¹⁸ = 2610679 is a prime.

It is a super-2 number, since 2×2872823² = 16506223978658, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2872823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2872853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1436411 + 1436412.

It is an arithmetic number, because the mean of its divisors is an integer number (1436412).

2^2872823 is an apocalyptic number.

2872823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2872823 is an equidigital number, since it uses as much as digits as its factorization.

2872823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 32.

The square root of 2872823 is about 1694.9404119319. The cubic root of 2872823 is about 142.1574495042.

It can be divided in two parts, 2 and 872823, that multiplied together give a triangular number (1745646 = T₁₈₆₈).

The spelling of 2872823 in words is "two million, eight hundred seventy-two thousand, eight hundred twenty-three".