346999 has 4 divisors (see below), whose sum is σ = 348336. Its totient is φ = 345664.

The previous prime is 346963. The next prime is 347003. The reversal of 346999 is 999643.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 999643 = 47 ⋅21269.

It is a cyclic number.

It is not a de Polignac number, because 346999 - 2¹⁷ = 215927 is a prime.

It is a Duffinian number.

346999 is a modest number, since divided by 999 gives 346 as remainder.

It is a plaindrome in base 8 and base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139 + ... + 844.

It is an arithmetic number, because the mean of its divisors is an integer number (87084).

2³⁴⁶⁹⁹⁹ is an apocalyptic number.

346999 is a deficient number, since it is larger than the sum of its proper divisors (1337).

346999 is an equidigital number, since it uses as much as digits as its factorization.

346999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336.

The product of its digits is 52488, while the sum is 40.

The square root of 346999 is about 589.0662102005. The cubic root of 346999 is about 70.2709903799.

The spelling of 346999 in words is "three hundred forty-six thousand, nine hundred ninety-nine".