349897 has 4 divisors (see below), whose sum is σ = 361216. Its totient is φ = 338580.

The previous prime is 349871. The next prime is 349903. The reversal of 349897 is 798943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 349897 - 2¹¹ = 347849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349837) 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, 5613 + ... + 5674.

It is an arithmetic number, because the mean of its divisors is an integer number (90304).

2³⁴⁹⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

349897 is a deficient number, since it is larger than the sum of its proper divisors (11319).

349897 is a wasteful number, since it uses less digits than its factorization.

349897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11318.

The product of its digits is 54432, while the sum is 40.

The square root of 349897 is about 591.5209210163. The cubic root of 349897 is about 70.4660735779.

The spelling of 349897 in words is "three hundred forty-nine thousand, eight hundred ninety-seven".