349843859 has 4 divisors (see below), whose sum is σ = 351776880. Its totient is φ = 347910840.

The previous prime is 349843847. The next prime is 349843913. The reversal of 349843859 is 958348943.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 349843859 - 2²⁸ = 81408403 is a prime.

It is a super-3 number, since 3×349843859³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 349843859.

It is not an unprimeable number, because it can be changed into a prime (349843259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966239 + ... + 966600.

It is an arithmetic number, because the mean of its divisors is an integer number (87944220).

Almost surely, 2^349843859 is an apocalyptic number.

349843859 is a deficient number, since it is larger than the sum of its proper divisors (1933021).

349843859 is a wasteful number, since it uses less digits than its factorization.

349843859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933020.

The product of its digits is 3732480, while the sum is 53.

The square root of 349843859 is about 18704.1134245919. The cubic root of 349843859 is about 704.6250602595.

The spelling of 349843859 in words is "three hundred forty-nine million, eight hundred forty-three thousand, eight hundred fifty-nine".