1000573 has 4 divisors (see below), whose sum is σ = 1143520. Its totient is φ = 857628.

The previous prime is 1000547. The next prime is 1000577. The reversal of 1000573 is 3750001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1000573 - 2⁵ = 1000541 is a prime.

It is a super-2 number, since 2×1000573² = 2002292656658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000577) 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, 71463 + ... + 71476.

It is an arithmetic number, because the mean of its divisors is an integer number (285880).

2^1000573 is an apocalyptic number.

It is an amenable number.

1000573 is a deficient number, since it is larger than the sum of its proper divisors (142947).

1000573 is an equidigital number, since it uses as much as digits as its factorization.

1000573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142946.

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 1000573 is about 1000.2864589706. The cubic root of 1000573 is about 100.0190963531.

Adding to 1000573 its reverse (3750001), we get a palindrome (4750574).

The spelling of 1000573 in words is "one million, five hundred seventy-three", and thus it is an aban number.