2789923 has 8 divisors (see below), whose sum is σ = 2942496. Its totient is φ = 2640000.

The previous prime is 2789893. The next prime is 2789929. The reversal of 2789923 is 3299872.

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 2789923 - 2¹³ = 2781731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2789929) 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, 1723 + ... + 2923.

It is an arithmetic number, because the mean of its divisors is an integer number (367812).

2^2789923 is an apocalyptic number.

2789923 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2789923 is a deficient number, since it is larger than the sum of its proper divisors (152573).

2789923 is a wasteful number, since it uses less digits than its factorization.

2789923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325.

The product of its digits is 54432, while the sum is 40.

The square root of 2789923 is about 1670.3062593429. The cubic root of 2789923 is about 140.7766865616.

It can be divided in two parts, 278 and 9923, that added together give a palindrome (10201).

The spelling of 2789923 in words is "two million, seven hundred eighty-nine thousand, nine hundred twenty-three".