349856786 has 16 divisors (see below), whose sum is σ = 532363104. Its totient is φ = 172412544.

The previous prime is 349856761. The next prime is 349856789. The reversal of 349856786 is 687658943.

It is not an unprimeable number, because it can be changed into a prime (349856789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75266 + ... + 79778.

It is an arithmetic number, because the mean of its divisors is an integer number (33272694).

Almost surely, 2^349856786 is an apocalyptic number.

349856786 is a deficient number, since it is larger than the sum of its proper divisors (182506318).

349856786 is a wasteful number, since it uses less digits than its factorization.

349856786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065.

The product of its digits is 8709120, while the sum is 56.

The square root of 349856786 is about 18704.4589870972. The cubic root of 349856786 is about 704.6337389655.

The spelling of 349856786 in words is "three hundred forty-nine million, eight hundred fifty-six thousand, seven hundred eighty-six".