347216028 has 12 divisors (see below), whose sum is σ = 810170760. Its totient is φ = 115738672.

The previous prime is 347216011. The next prime is 347216053. The reversal of 347216028 is 820612743.

347216028 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 347216028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14467323 + ... + 14467346.

It is an arithmetic number, because the mean of its divisors is an integer number (67514230).

Almost surely, 2^347216028 is an apocalyptic number.

It is an amenable number.

347216028 is an abundant number, since it is smaller than the sum of its proper divisors (462954732).

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

347216028 is a wasteful number, since it uses less digits than its factorization.

347216028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28934676 (or 28934674 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 347216028 is about 18633.7336033335. The cubic root of 347216028 is about 702.8563748658.

The spelling of 347216028 in words is "three hundred forty-seven million, two hundred sixteen thousand, twenty-eight".