864002 has 4 divisors (see below), whose sum is σ = 1296006. Its totient is φ = 432000.

The previous prime is 863983. The next prime is 864007. The reversal of 864002 is 200468.

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

It can be written as a sum of positive squares in only one way, i.e., 863041 + 961 = 929^2 + 31^2 .

It is not an unprimeable number, because it can be changed into a prime (864007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215999 + ... + 216002.

2⁸⁶⁴⁰⁰² is an apocalyptic number.

864002 is a deficient number, since it is larger than the sum of its proper divisors (432004).

864002 is a wasteful number, since it uses less digits than its factorization.

864002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432003.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 864002 is about 929.5170789179. The cubic root of 864002 is about 95.2441366088.

The spelling of 864002 in words is "eight hundred sixty-four thousand, two".