349382986 has 4 divisors (see below), whose sum is σ = 524074482. Its totient is φ = 174691492.

The previous prime is 349382983. The next prime is 349382993. The reversal of 349382986 is 689283943.

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

It can be written as a sum of positive squares in only one way, i.e., 348979761 + 403225 = 18681^2 + 635^2 .

It is not an unprimeable number, because it can be changed into a prime (349382983) 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 as a sum of consecutive naturals, namely, 87345745 + ... + 87345748.

Almost surely, 2^349382986 is an apocalyptic number.

349382986 is a deficient number, since it is larger than the sum of its proper divisors (174691496).

349382986 is a wasteful number, since it uses less digits than its factorization.

349382986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174691495.

The product of its digits is 2239488, while the sum is 52.

The square root of 349382986 is about 18691.7892669482. The cubic root of 349382986 is about 704.3155075230.

The spelling of 349382986 in words is "three hundred forty-nine million, three hundred eighty-two thousand, nine hundred eighty-six".