349703643 has 8 divisors (see below), whose sum is σ = 470798848. Its totient is φ = 230872104.

The previous prime is 349703621. The next prime is 349703647. The reversal of 349703643 is 346307943.

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

It is not a de Polignac number, because 349703643 - 2⁶ = 349703579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349703647) 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, 565555 + ... + 566172.

It is an arithmetic number, because the mean of its divisors is an integer number (58849856).

Almost surely, 2^349703643 is an apocalyptic number.

349703643 is a deficient number, since it is larger than the sum of its proper divisors (121095205).

349703643 is a wasteful number, since it uses less digits than its factorization.

349703643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131833.

The product of its (nonzero) digits is 163296, while the sum is 39.

The square root of 349703643 is about 18700.3647825383. The cubic root of 349703643 is about 704.5309107245.

The spelling of 349703643 in words is "three hundred forty-nine million, seven hundred three thousand, six hundred forty-three".