864104 has 8 divisors (see below), whose sum is σ = 1620210. Its totient is φ = 432048.

The previous prime is 864103. The next prime is 864107. The reversal of 864104 is 401468.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 643204 + 220900 = 802^2 + 470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 864104.

It is not an unprimeable number, because it can be changed into a prime (864103) 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, 53999 + ... + 54014.

2⁸⁶⁴¹⁰⁴ is an apocalyptic number.

It is an amenable number.

864104 is a deficient number, since it is larger than the sum of its proper divisors (756106).

864104 is a wasteful number, since it uses less digits than its factorization.

864104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108019 (or 108015 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 864104 is about 929.5719444992. The cubic root of 864104 is about 95.2478844858.

The spelling of 864104 in words is "eight hundred sixty-four thousand, one hundred four".