349718 has 4 divisors (see below), whose sum is σ = 524580. Its totient is φ = 174858.

The previous prime is 349717. The next prime is 349729. The reversal of 349718 is 817943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 817943 = 7 ⋅116849.

It is a super-3 number, since 3×349718³ = 128314345433322696, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 349718.

It is not an unprimeable number, because it can be changed into a prime (349717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87428 + ... + 87431.

It is an arithmetic number, because the mean of its divisors is an integer number (131145).

2³⁴⁹⁷¹⁸ is an apocalyptic number.

349718 is a deficient number, since it is larger than the sum of its proper divisors (174862).

349718 is a wasteful number, since it uses less digits than its factorization.

349718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174861.

The product of its digits is 6048, while the sum is 32.

The square root of 349718 is about 591.3695967836. The cubic root of 349718 is about 70.4540552042.

The spelling of 349718 in words is "three hundred forty-nine thousand, seven hundred eighteen".