1000343 has 4 divisors (see below), whose sum is σ = 1009800. Its totient is φ = 990888.

The previous prime is 1000333. The next prime is 1000357. The reversal of 1000343 is 3430001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3430001 = 53 ⋅64717.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000343 is a prime.

It is a super-2 number, since 2×1000343² = 2001372235298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000303) 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, 4568 + ... + 4781.

It is an arithmetic number, because the mean of its divisors is an integer number (252450).

2^1000343 is an apocalyptic number.

1000343 is a deficient number, since it is larger than the sum of its proper divisors (9457).

1000343 is an equidigital number, since it uses as much as digits as its factorization.

1000343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9456.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 1000343 is about 1000.1714852964. The cubic root of 1000343 is about 100.0114320264.

Adding to 1000343 its reverse (3430001), we get a palindrome (4430344).

It can be divided in two parts, 1000 and 343, that multiplied together give a cube (343000 = 70³).

The spelling of 1000343 in words is "one million, three hundred forty-three", and thus it is an aban number.