343457 has 4 divisors (see below), whose sum is σ = 351876. Its totient is φ = 335040.

The previous prime is 343433. The next prime is 343481. The reversal of 343457 is 754343.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (343433) and next prime (343481).

It can be written as a sum of positive squares in 2 ways, for example, as 30976 + 312481 = 176^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 343457 - 2⁶ = 343393 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 343457.

It is not an unprimeable number, because it can be changed into a prime (348457) 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, 4148 + ... + 4229.

It is an arithmetic number, because the mean of its divisors is an integer number (87969).

2³⁴³⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

343457 is a deficient number, since it is larger than the sum of its proper divisors (8419).

343457 is an equidigital number, since it uses as much as digits as its factorization.

343457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8418.

The product of its digits is 5040, while the sum is 26.

The square root of 343457 is about 586.0520454704. The cubic root of 343457 is about 70.0310746386.

The spelling of 343457 in words is "three hundred forty-three thousand, four hundred fifty-seven".