343919 has 8 divisors (see below), whose sum is σ = 378240. Its totient is φ = 311256.

The previous prime is 343913. The next prime is 343933. The reversal of 343919 is 919343.

343919 = 76² + 77² + ... + 113².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343919 is a prime.

It is a super-2 number, since 2×343919² = 236560557122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343891 and 343900.

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 343919.

It is not an unprimeable number, because it can be changed into a prime (343913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44 + ... + 830.

It is an arithmetic number, because the mean of its divisors is an integer number (47280).

2³⁴³⁹¹⁹ is an apocalyptic number.

343919 is a deficient number, since it is larger than the sum of its proper divisors (34321).

343919 is a wasteful number, since it uses less digits than its factorization.

343919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829.

The product of its digits is 2916, while the sum is 29.

The square root of 343919 is about 586.4460759524. The cubic root of 343919 is about 70.0624612558.

It can be divided in two parts, 3439 and 19, that multiplied together give a triangular number (65341 = T₃₆₁).

The spelling of 343919 in words is "three hundred forty-three thousand, nine hundred nineteen".