349687343 has 6 divisors (see below), whose sum is σ = 369060984. Its totient is φ = 331282404.

The previous prime is 349687291. The next prime is 349687367. The reversal of 349687343 is 343786943.

It is not a de Polignac number, because 349687343 - 2¹⁶ = 349621807 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 (349687543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 483971 + ... + 484692.

It is an arithmetic number, because the mean of its divisors is an integer number (61510164).

Almost surely, 2^349687343 is an apocalyptic number.

349687343 is a deficient number, since it is larger than the sum of its proper divisors (19373641).

349687343 is an equidigital number, since it uses as much as digits as its factorization.

349687343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968701 (or 968682 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 47.

The square root of 349687343 is about 18699.9289570843. The cubic root of 349687343 is about 704.5199642822.

The spelling of 349687343 in words is "three hundred forty-nine million, six hundred eighty-seven thousand, three hundred forty-three".