347897 has 4 divisors (see below), whose sum is σ = 379536. Its totient is φ = 316260.

The previous prime is 347891. The next prime is 347899. The reversal of 347897 is 798743.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798743 = 11 ⋅72613.

It is a cyclic number.

It is not a de Polignac number, because 347897 - 2¹⁰ = 346873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 347897.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 347897.

It is not an unprimeable number, because it can be changed into a prime (347891) 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, 15803 + ... + 15824.

It is an arithmetic number, because the mean of its divisors is an integer number (94884).

2³⁴⁷⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

347897 is a deficient number, since it is larger than the sum of its proper divisors (31639).

347897 is a wasteful number, since it uses less digits than its factorization.

347897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31638.

The product of its digits is 42336, while the sum is 38.

The square root of 347897 is about 589.8279410133. The cubic root of 347897 is about 70.3315563492.

The spelling of 347897 in words is "three hundred forty-seven thousand, eight hundred ninety-seven".