347988 has 24 divisors (see below), whose sum is σ = 830592. Its totient is φ = 113344.

The previous prime is 347987. The next prime is 347989. The reversal of 347988 is 889743.

It is an interprime number because it is at equal distance from previous prime (347987) and next prime (347989).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256 + ... + 872.

It is an arithmetic number, because the mean of its divisors is an integer number (34608).

2³⁴⁷⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

347988 is an abundant number, since it is smaller than the sum of its proper divisors (482604).

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

347988 is a wasteful number, since it uses less digits than its factorization.

347988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 669 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 347988 is about 589.9050771099. The cubic root of 347988 is about 70.3376880622.

The spelling of 347988 in words is "three hundred forty-seven thousand, nine hundred eighty-eight".