864117 has 6 divisors (see below), whose sum is σ = 1248182. Its totient is φ = 576072.

The previous prime is 864107. The next prime is 864119. The reversal of 864117 is 711468.

It is a happy number.

864117 is a `hidden beast` number, since 8 + 641 + 17 = 666.

It can be written as a sum of positive squares in only one way, i.e., 848241 + 15876 = 921^2 + 126^2 .

It is not a de Polignac number, because 864117 - 2⁶ = 864053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47998 + ... + 48015.

2⁸⁶⁴¹¹⁷ is an apocalyptic number.

It is an amenable number.

864117 is a deficient number, since it is larger than the sum of its proper divisors (384065).

864117 is a wasteful number, since it uses less digits than its factorization.

864117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96019 (or 96016 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 864117 is about 929.5789369387. The cubic root of 864117 is about 95.2483621352.

The spelling of 864117 in words is "eight hundred sixty-four thousand, one hundred seventeen".