343894 has 4 divisors (see below), whose sum is σ = 515844. Its totient is φ = 171946.

The previous prime is 343891. The next prime is 343897. The reversal of 343894 is 498343.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (343891) and next prime (343897).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

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 343894.

It is not an unprimeable number, because it can be changed into a prime (343891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85972 + ... + 85975.

It is an arithmetic number, because the mean of its divisors is an integer number (128961).

2³⁴³⁸⁹⁴ is an apocalyptic number.

343894 is a deficient number, since it is larger than the sum of its proper divisors (171950).

343894 is a wasteful number, since it uses less digits than its factorization.

343894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171949.

The product of its digits is 10368, while the sum is 31.

The square root of 343894 is about 586.4247607324. The cubic root of 343894 is about 70.0607635654.

Subtracting 343894 from its reverse (498343), we obtain a square (154449 = 393²).

The spelling of 343894 in words is "three hundred forty-three thousand, eight hundred ninety-four".