349206287 has 16 divisors (see below), whose sum is σ = 362385792. Its totient is φ = 336322560.

The previous prime is 349206281. The next prime is 349206343. The reversal of 349206287 is 782602943.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 349206287 - 2⁶ = 349206223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349206281) 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, 1242587 + ... + 1242867.

It is an arithmetic number, because the mean of its divisors is an integer number (22649112).

Almost surely, 2^349206287 is an apocalyptic number.

349206287 is a deficient number, since it is larger than the sum of its proper divisors (13179505).

349206287 is a wasteful number, since it uses less digits than its factorization.

349206287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 349206287 is about 18687.0620216234. The cubic root of 349206287 is about 704.1967526159.

The spelling of 349206287 in words is "three hundred forty-nine million, two hundred six thousand, two hundred eighty-seven".