1047823 has 4 divisors (see below), whose sum is σ = 1197520. Its totient is φ = 898128.

The previous prime is 1047821. The next prime is 1047833. The reversal of 1047823 is 3287401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3287401 = 13 ⋅252877.

It is not a de Polignac number, because 1047823 - 2¹ = 1047821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74838 + ... + 74851.

It is an arithmetic number, because the mean of its divisors is an integer number (299380).

2^1047823 is an apocalyptic number.

1047823 is a deficient number, since it is larger than the sum of its proper divisors (149697).

1047823 is an equidigital number, since it uses as much as digits as its factorization.

1047823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149696.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1047823 is about 1023.6322581865. The cubic root of 1047823 is about 101.5693427973.

It can be divided in two parts, 10478 and 23, that added together give a palindrome (10501).

The spelling of 1047823 in words is "one million, forty-seven thousand, eight hundred twenty-three".