1053823 has 4 divisors (see below), whose sum is σ = 1079568. Its totient is φ = 1028080.

The previous prime is 1053821. The next prime is 1053827. The reversal of 1053823 is 3283501.

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 1053823 - 2¹ = 1053821 is a prime.

It is a super-2 number, since 2×1053823² = 2221085830658, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1053794 and 1053803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053821) 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, 12811 + ... + 12892.

It is an arithmetic number, because the mean of its divisors is an integer number (269892).

2^1053823 is an apocalyptic number.

1053823 is a deficient number, since it is larger than the sum of its proper divisors (25745).

1053823 is an equidigital number, since it uses as much as digits as its factorization.

1053823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25744.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1053823 is about 1026.5588146814. The cubic root of 1053823 is about 101.7628412982.

The spelling of 1053823 in words is "one million, fifty-three thousand, eight hundred twenty-three".