2847923 has 4 divisors (see below), whose sum is σ = 3067008. Its totient is φ = 2628840.

The previous prime is 2847917. The next prime is 2847931. The reversal of 2847923 is 3297482.

2847923 is nontrivially palindromic in base 11.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2847923 - 2¹⁴ = 2831539 is a prime.

It is a super-2 number, since 2×2847923² = 16221330827858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2847973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109523 + ... + 109548.

It is an arithmetic number, because the mean of its divisors is an integer number (766752).

2^2847923 is an apocalyptic number.

2847923 is a deficient number, since it is larger than the sum of its proper divisors (219085).

2847923 is a wasteful number, since it uses less digits than its factorization.

2847923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219084.

The product of its digits is 24192, while the sum is 35.

The square root of 2847923 is about 1687.5790351862. The cubic root of 2847923 is about 141.7455437717.

The spelling of 2847923 in words is "two million, eight hundred forty-seven thousand, nine hundred twenty-three".