346881 has 8 divisors (see below), whose sum is σ = 473440. Its totient is φ = 225792.

The previous prime is 346877. The next prime is 346891. The reversal of 346881 is 188643.

It is a happy number.

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

It is not a de Polignac number, because 346881 - 2² = 346877 is a prime.

It is a super-2 number, since 2×346881² = 240652856322, which contains 22 as substring.

It is a Duffinian number.

346881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (346831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216 + ... + 1473.

It is an arithmetic number, because the mean of its divisors is an integer number (59180).

2³⁴⁶⁸⁸¹ is an apocalyptic number.

It is an amenable number.

346881 is a deficient number, since it is larger than the sum of its proper divisors (126559).

346881 is a wasteful number, since it uses less digits than its factorization.

346881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735.

The product of its digits is 4608, while the sum is 30.

The square root of 346881 is about 588.9660431638. The cubic root of 346881 is about 70.2630240582.

The spelling of 346881 in words is "three hundred forty-six thousand, eight hundred eighty-one".