349564217 has 8 divisors (see below), whose sum is σ = 370895616. Its totient is φ = 328318272.

The previous prime is 349564213. The next prime is 349564247. The reversal of 349564217 is 712465943.

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

It is a cyclic number.

It is not a de Polignac number, because 349564217 - 2² = 349564213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349564213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12833 + ... + 29390.

It is an arithmetic number, because the mean of its divisors is an integer number (46361952).

Almost surely, 2^349564217 is an apocalyptic number.

It is an amenable number.

349564217 is a deficient number, since it is larger than the sum of its proper divisors (21331399).

349564217 is a wasteful number, since it uses less digits than its factorization.

349564217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42727.

The product of its digits is 181440, while the sum is 41.

The square root of 349564217 is about 18696.6365156945. The cubic root of 349564217 is about 704.4372666859.

The spelling of 349564217 in words is "three hundred forty-nine million, five hundred sixty-four thousand, two hundred seventeen".