343117639 has 4 divisors (see below), whose sum is σ = 343320120. Its totient is φ = 342915160.

The previous prime is 343117633. The next prime is 343117651. The reversal of 343117639 is 936711343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936711343 = 19 ⋅49300597.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343117639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343117598 and 343117607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343117633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98677 + ... + 102094.

It is an arithmetic number, because the mean of its divisors is an integer number (85830030).

Almost surely, 2^343117639 is an apocalyptic number.

343117639 is a deficient number, since it is larger than the sum of its proper divisors (202481).

343117639 is a wasteful number, since it uses less digits than its factorization.

343117639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202480.

The product of its digits is 40824, while the sum is 37.

The square root of 343117639 is about 18523.4348596582. The cubic root of 343117639 is about 700.0800173834.

The spelling of 343117639 in words is "three hundred forty-three million, one hundred seventeen thousand, six hundred thirty-nine".