346813 has 6 divisors (see below), whose sum is σ = 356606. Its totient is φ = 337272.

The previous prime is 346793. The next prime is 346831. The reversal of 346813 is 318643.

346813 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 267289 + 79524 = 517^2 + 282^2 .

It is a de Polignac number, because none of the positive numbers 2^k-346813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346873) 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 5 ways as a sum of consecutive naturals, for example, 2131 + ... + 2287.

2³⁴⁶⁸¹³ is an apocalyptic number.

It is an amenable number.

346813 is a deficient number, since it is larger than the sum of its proper divisors (9793).

346813 is an equidigital number, since it uses as much as digits as its factorization.

346813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 204 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 346813 is about 588.9083120487. The cubic root of 346813 is about 70.2584324760.

It can be divided in two parts, 3468 and 13, that added together give a square (3481 = 59²).

The spelling of 346813 in words is "three hundred forty-six thousand, eight hundred thirteen".