866097 has 6 divisors (see below), whose sum is σ = 1251042. Its totient is φ = 577392.

The previous prime is 866093. The next prime is 866101. The reversal of 866097 is 790668.

It is an interprime number because it is at equal distance from previous prime (866093) and next prime (866101).

It can be written as a sum of positive squares in only one way, i.e., 853776 + 12321 = 924^2 + 111^2 .

It is not a de Polignac number, because 866097 - 2² = 866093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (866093) 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 in 5 ways as a sum of consecutive naturals, for example, 48108 + ... + 48125.

It is an arithmetic number, because the mean of its divisors is an integer number (208507).

2⁸⁶⁶⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

866097 is a deficient number, since it is larger than the sum of its proper divisors (384945).

866097 is a wasteful number, since it uses less digits than its factorization.

866097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96239 (or 96236 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 866097 is about 930.6433258773. The cubic root of 866097 is about 95.3210559550.

The spelling of 866097 in words is "eight hundred sixty-six thousand, ninety-seven".