346728 has 16 divisors (see below), whose sum is σ = 866880. Its totient is φ = 115568.

The previous prime is 346721. The next prime is 346739. The reversal of 346728 is 827643.

It is a d-powerful number, because it can be written as 3⁶ + 4⁸ + 7 + 6⁷ + 2⁹ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 346695 and 346704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346721) 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, 7200 + ... + 7247.

It is an arithmetic number, because the mean of its divisors is an integer number (54180).

2³⁴⁶⁷²⁸ is an apocalyptic number.

It is an amenable number.

346728 is an abundant number, since it is smaller than the sum of its proper divisors (520152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

346728 is a wasteful number, since it uses less digits than its factorization.

346728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14456 (or 14452 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 346728 is about 588.8361401952. The cubic root of 346728 is about 70.2526921542.

The spelling of 346728 in words is "three hundred forty-six thousand, seven hundred twenty-eight".