49897 has 4 divisors (see below), whose sum is σ = 51156. Its totient is φ = 48640.

The previous prime is 49891. The next prime is 49919. The reversal of 49897 is 79894.

It is a happy number.

49897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8281 + 41616 = 91^2 + 204^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49897 is a prime.

It is a d-powerful number, because it can be written as 4⁷ + 9 + 8⁵ + 9³ + 7 .

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (49891) 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, 568 + ... + 649.

It is an arithmetic number, because the mean of its divisors is an integer number (12789).

2⁴⁹⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

49897 is a deficient number, since it is larger than the sum of its proper divisors (1259).

49897 is a wasteful number, since it uses less digits than its factorization.

49897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258.

The product of its digits is 18144, while the sum is 37.

The square root of 49897 is about 223.3763640137. The cubic root of 49897 is about 36.8150005796.

It can be divided in two parts, 498 and 97, that added together give a palindrome (595).

The spelling of 49897 in words is "forty-nine thousand, eight hundred ninety-seven".