343912 has 8 divisors (see below), whose sum is σ = 644850. Its totient is φ = 171952.

The previous prime is 343901. The next prime is 343913. The reversal of 343912 is 219343.

It can be written as a sum of positive squares in only one way, i.e., 298116 + 45796 = 546^2 + 214^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (343913) by changing a digit.

343912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21487 + ... + 21502.

2³⁴³⁹¹² is an apocalyptic number.

It is an amenable number.

343912 is a deficient number, since it is larger than the sum of its proper divisors (300938).

343912 is a wasteful number, since it uses less digits than its factorization.

343912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42995 (or 42991 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

The square root of 343912 is about 586.4401077689. The cubic root of 343912 is about 70.0619859108.

The spelling of 343912 in words is "three hundred forty-three thousand, nine hundred twelve".