343107681 has 16 divisors (see below), whose sum is σ = 550348800. Its totient is φ = 185742288.

The previous prime is 343107631. The next prime is 343107689. The reversal of 343107681 is 186701343.

It is not a de Polignac number, because 343107681 - 2⁷ = 343107553 is a prime.

It is a super-2 number, since 2×343107681² = 235445761522395522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343107689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429561 + ... + 430358.

It is an arithmetic number, because the mean of its divisors is an integer number (34396800).

Almost surely, 2^343107681 is an apocalyptic number.

It is an amenable number.

343107681 is a deficient number, since it is larger than the sum of its proper divisors (207241119).

343107681 is a wasteful number, since it uses less digits than its factorization.

343107681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859948.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 343107681 is about 18523.1660630682. The cubic root of 343107681 is about 700.0732447167.

The spelling of 343107681 in words is "three hundred forty-three million, one hundred seven thousand, six hundred eighty-one".