47897 has 4 divisors (see below), whose sum is σ = 48336. Its totient is φ = 47460.

The previous prime is 47881. The next prime is 47903. The reversal of 47897 is 79874.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79874 = 2 ⋅39937.

It is a cyclic number.

It is not a de Polignac number, because 47897 - 2⁴ = 47881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47807) 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, 98 + ... + 324.

It is an arithmetic number, because the mean of its divisors is an integer number (12084).

2⁴⁷⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

47897 is a deficient number, since it is larger than the sum of its proper divisors (439).

47897 is a wasteful number, since it uses less digits than its factorization.

47897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438.

The product of its digits is 14112, while the sum is 35.

The square root of 47897 is about 218.8538325001. The cubic root of 47897 is about 36.3163983213.

It can be divided in two parts, 478 and 97, that added together give a palindrome (575).

The spelling of 47897 in words is "forty-seven thousand, eight hundred ninety-seven".