343973 has 4 divisors (see below), whose sum is σ = 393120. Its totient is φ = 294828.

The previous prime is 343963. The next prime is 343997. The reversal of 343973 is 379343.

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 343973 - 2¹⁰ = 342949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343913) 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, 24563 + ... + 24576.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2³⁴³⁹⁷³ is an apocalyptic number.

It is an amenable number.

343973 is a deficient number, since it is larger than the sum of its proper divisors (49147).

343973 is an equidigital number, since it uses as much as digits as its factorization.

343973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49146.

The product of its digits is 6804, while the sum is 29.

The square root of 343973 is about 586.4921141840. The cubic root of 343973 is about 70.0661279864.

The spelling of 343973 in words is "three hundred forty-three thousand, nine hundred seventy-three".