349047091 has 8 divisors (see below), whose sum is σ = 355057920. Its totient is φ = 343069632.

The previous prime is 349047089. The next prime is 349047131. The reversal of 349047091 is 190740943.

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

It is not a de Polignac number, because 349047091 - 2¹ = 349047089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 349047091.

It is not an unprimeable number, because it can be changed into a prime (349047071) 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 7 ways as a sum of consecutive naturals, for example, 13230 + ... + 29548.

It is an arithmetic number, because the mean of its divisors is an integer number (44382240).

Almost surely, 2^349047091 is an apocalyptic number.

349047091 is a deficient number, since it is larger than the sum of its proper divisors (6010829).

349047091 is a wasteful number, since it uses less digits than its factorization.

349047091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16685.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 349047091 is about 18682.8020114757. The cubic root of 349047091 is about 704.0897267211.

The spelling of 349047091 in words is "three hundred forty-nine million, forty-seven thousand, ninety-one".