343620909 has 24 divisors (see below), whose sum is σ = 527117760. Its totient is φ = 215091072.

The previous prime is 343620883. The next prime is 343620911. The reversal of 343620909 is 909026343.

It is a happy number.

It is not a de Polignac number, because 343620909 - 2⁸ = 343620653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343620209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10432 + ... + 28214.

It is an arithmetic number, because the mean of its divisors is an integer number (21963240).

Almost surely, 2^343620909 is an apocalyptic number.

It is an amenable number.

343620909 is a deficient number, since it is larger than the sum of its proper divisors (183496851).

343620909 is a wasteful number, since it uses less digits than its factorization.

343620909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17921 (or 17918 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 343620909 is about 18537.0145654579. The cubic root of 343620909 is about 700.4221324582.

The spelling of 343620909 in words is "three hundred forty-three million, six hundred twenty thousand, nine hundred nine".