1044643 has 4 divisors (see below), whose sum is σ = 1055088. Its totient is φ = 1034200.

The previous prime is 1044629. The next prime is 1044653. The reversal of 1044643 is 3464401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3464401 = 101 ⋅34301.

It is a cyclic number.

It is not a de Polignac number, because 1044643 - 2¹⁷ = 913571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1044613) 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, 5071 + ... + 5272.

It is an arithmetic number, because the mean of its divisors is an integer number (263772).

2^1044643 is an apocalyptic number.

1044643 is a deficient number, since it is larger than the sum of its proper divisors (10445).

1044643 is a wasteful number, since it uses less digits than its factorization.

1044643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10444.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1044643 is about 1022.0777856895. The cubic root of 1044643 is about 101.4664889737.

The spelling of 1044643 in words is "one million, forty-four thousand, six hundred forty-three".