864067 has 4 divisors (see below), whose sum is σ = 872560. Its totient is φ = 855576.

The previous prime is 864053. The next prime is 864077. The reversal of 864067 is 760468.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-864067 is a prime.

It is a super-2 number, since 2×864067² = 1493223560978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864007) 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 3 ways as a sum of consecutive naturals, for example, 4092 + ... + 4297.

It is an arithmetic number, because the mean of its divisors is an integer number (218140).

2⁸⁶⁴⁰⁶⁷ is an apocalyptic number.

864067 is a deficient number, since it is larger than the sum of its proper divisors (8493).

864067 is a wasteful number, since it uses less digits than its factorization.

864067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8492.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 864067 is about 929.5520426528. The cubic root of 864067 is about 95.2465249959.

The spelling of 864067 in words is "eight hundred sixty-four thousand, sixty-seven".