349487 has 4 divisors (see below), whose sum is σ = 352176. Its totient is φ = 346800.

The previous prime is 349483. The next prime is 349493. The reversal of 349487 is 784943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784943 = 29 ⋅27067.

It is a cyclic number.

It is not a de Polignac number, because 349487 - 2² = 349483 is a prime.

It is a Duffinian number.

Its product of digits (24192) is a multiple of the sum of its prime divisors (2688).

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 349487.

It is not an unprimeable number, because it can be changed into a prime (349483) 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 3 ways as a sum of consecutive naturals, for example, 1139 + ... + 1412.

It is an arithmetic number, because the mean of its divisors is an integer number (88044).

2³⁴⁹⁴⁸⁷ is an apocalyptic number.

349487 is a deficient number, since it is larger than the sum of its proper divisors (2689).

349487 is a wasteful number, since it uses less digits than its factorization.

349487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688.

The product of its digits is 24192, while the sum is 35.

The square root of 349487 is about 591.1742551905. The cubic root of 349487 is about 70.4385393968.

The spelling of 349487 in words is "three hundred forty-nine thousand, four hundred eighty-seven".