343339991 has 8 divisors (see below), whose sum is σ = 347855040. Its totient is φ = 338851072.

The previous prime is 343339979. The next prime is 343339999. The reversal of 343339991 is 199933343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343339991 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 (343339999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20651 + ... + 33363.

It is an arithmetic number, because the mean of its divisors is an integer number (43481880).

Almost surely, 2^343339991 is an apocalyptic number.

343339991 is a deficient number, since it is larger than the sum of its proper divisors (4515049).

343339991 is a wasteful number, since it uses less digits than its factorization.

343339991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13065.

The product of its digits is 236196, while the sum is 44.

The square root of 343339991 is about 18529.4357982104. The cubic root of 343339991 is about 700.2312100175.

The spelling of 343339991 in words is "three hundred forty-three million, three hundred thirty-nine thousand, nine hundred ninety-one".