349899 has 16 divisors (see below), whose sum is σ = 532224. Its totient is φ = 202400.

The previous prime is 349871. The next prime is 349903. The reversal of 349899 is 998943.

It is not a de Polignac number, because 349899 - 2⁹ = 349387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349899.

It is not an unprimeable number, because it can be changed into a prime (349819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529 + ... + 989.

It is an arithmetic number, because the mean of its divisors is an integer number (33264).

2³⁴⁹⁸⁹⁹ is an apocalyptic number.

349899 is a deficient number, since it is larger than the sum of its proper divisors (182325).

349899 is a wasteful number, since it uses less digits than its factorization.

349899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498.

The product of its digits is 69984, while the sum is 42.

The square root of 349899 is about 591.5226115712. The cubic root of 349899 is about 70.4662078383.

The spelling of 349899 in words is "three hundred forty-nine thousand, eight hundred ninety-nine".