349659 has 6 divisors (see below), whose sum is σ = 505076. Its totient is φ = 233100.

The previous prime is 349637. The next prime is 349663. The reversal of 349659 is 956943.

It is not a de Polignac number, because 349659 - 2⁸ = 349403 is a prime.

It is a super-2 number, since 2×349659² = 244522832562, which contains 22 as substring.

It is a Duffinian number.

349659 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (349759) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19417 + ... + 19434.

2³⁴⁹⁶⁵⁹ is an apocalyptic number.

349659 is a deficient number, since it is larger than the sum of its proper divisors (155417).

349659 is a wasteful number, since it uses less digits than its factorization.

349659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38857 (or 38854 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 349659 is about 591.3197104782. The cubic root of 349659 is about 70.4500929422.

The spelling of 349659 in words is "three hundred forty-nine thousand, six hundred fifty-nine".