539897 has 2 divisors, whose sum is σ = 539898. Its totient is φ = 539896.

The previous prime is 539881. The next prime is 539899. The reversal of 539897 is 798935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430336 + 109561 = 656^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 539897 - 2⁴ = 539881 is a prime.

Together with 539899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (539899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269948 + 269949.

It is an arithmetic number, because the mean of its divisors is an integer number (269949).

2⁵³⁹⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

539897 is a deficient number, since it is larger than the sum of its proper divisors (1).

539897 is an equidigital number, since it uses as much as digits as its factorization.

539897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 41.

The square root of 539897 is about 734.7768368695. The cubic root of 539897 is about 81.4273506684.

The spelling of 539897 in words is "five hundred thirty-nine thousand, eight hundred ninety-seven".