343477 has 4 divisors (see below), whose sum is σ = 347116. Its totient is φ = 339840.

The previous prime is 343433. The next prime is 343481. The reversal of 343477 is 774343.

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

It can be written as a sum of positive squares in 2 ways, for example, as 148996 + 194481 = 386^2 + 441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343177) 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, 1674 + ... + 1867.

It is an arithmetic number, because the mean of its divisors is an integer number (86779).

2³⁴³⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

343477 is a deficient number, since it is larger than the sum of its proper divisors (3639).

343477 is an equidigital number, since it uses as much as digits as its factorization.

343477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638.

The product of its digits is 7056, while the sum is 28.

The square root of 343477 is about 586.0691085529. The cubic root of 343477 is about 70.0324339493.

It can be divided in two parts, 343 and 477, that added together give a triangular number (820 = T₄₀).

The spelling of 343477 in words is "three hundred forty-three thousand, four hundred seventy-seven", and thus it is an iban number.