343481 has 2 divisors, whose sum is σ = 343482. Its totient is φ = 343480.

The previous prime is 343433. The next prime is 343489. The reversal of 343481 is 184343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241081 + 102400 = 491^2 + 320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343481 is a prime.

It is a super-2 number, since 2×343481² = 235958394722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 343481.

It is not a weakly prime, because it can be changed into another prime (343489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171740 + 171741.

It is an arithmetic number, because the mean of its divisors is an integer number (171741).

2³⁴³⁴⁸¹ is an apocalyptic number.

It is an amenable number.

343481 is a deficient number, since it is larger than the sum of its proper divisors (1).

343481 is an equidigital number, since it uses as much as digits as its factorization.

343481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 343481 is about 586.0725211098. The cubic root of 343481 is about 70.0327058051.

The spelling of 343481 in words is "three hundred forty-three thousand, four hundred eighty-one".