349955986 has 8 divisors (see below), whose sum is σ = 525034044. Its totient is φ = 174944640.

The previous prime is 349955929. The next prime is 349956001. The reversal of 349955986 is 689559943.

It can be written as a sum of positive squares in 2 ways, for example, as 349877025 + 78961 = 18705^2 + 281^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 349955986.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 375 + ... + 26458.

Almost surely, 2^349955986 is an apocalyptic number.

349955986 is a deficient number, since it is larger than the sum of its proper divisors (175078058).

349955986 is a wasteful number, since it uses less digits than its factorization.

349955986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33356.

The product of its digits is 10497600, while the sum is 58.

The square root of 349955986 is about 18707.1105732553. The cubic root of 349955986 is about 704.7003310342.

The spelling of 349955986 in words is "three hundred forty-nine million, nine hundred fifty-five thousand, nine hundred eighty-six".