349718347 has 16 divisors (see below), whose sum is σ = 396518400. Its totient is φ = 305560800.

The previous prime is 349718323. The next prime is 349718353. The reversal of 349718347 is 743817943.

It is not a de Polignac number, because 349718347 - 2⁷ = 349718219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 349718297 and 349718306.

It is not an unprimeable number, because it can be changed into a prime (349718357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47368 + ... + 54250.

It is an arithmetic number, because the mean of its divisors is an integer number (24782400).

Almost surely, 2^349718347 is an apocalyptic number.

349718347 is a deficient number, since it is larger than the sum of its proper divisors (46800053).

349718347 is a wasteful number, since it uses less digits than its factorization.

349718347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074.

The product of its digits is 508032, while the sum is 46.

The square root of 349718347 is about 18700.7579258168. The cubic root of 349718347 is about 704.5407850639.

The spelling of 349718347 in words is "three hundred forty-nine million, seven hundred eighteen thousand, three hundred forty-seven".