349206667 has 4 divisors (see below), whose sum is σ = 350344456. Its totient is φ = 348068880.

The previous prime is 349206659. The next prime is 349206691. The reversal of 349206667 is 766602943.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 349206667 - 2³ = 349206659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349206617) 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 3 ways as a sum of consecutive naturals, for example, 568434 + ... + 569047.

It is an arithmetic number, because the mean of its divisors is an integer number (87586114).

Almost surely, 2^349206667 is an apocalyptic number.

349206667 is a deficient number, since it is larger than the sum of its proper divisors (1137789).

349206667 is a wasteful number, since it uses less digits than its factorization.

349206667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137788.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 349206667 is about 18687.0721890830. The cubic root of 349206667 is about 704.1970080473.

The spelling of 349206667 in words is "three hundred forty-nine million, two hundred six thousand, six hundred sixty-seven".