864073 has 4 divisors (see below), whose sum is σ = 987520. Its totient is φ = 740628.

The previous prime is 864053. The next prime is 864077. The reversal of 864073 is 370468.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 864073 - 2⁹ = 863561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864077) 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, 61713 + ... + 61726.

It is an arithmetic number, because the mean of its divisors is an integer number (246880).

2⁸⁶⁴⁰⁷³ is an apocalyptic number.

It is an amenable number.

864073 is a deficient number, since it is larger than the sum of its proper divisors (123447).

864073 is a wasteful number, since it uses less digits than its factorization.

864073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123446.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 864073 is about 929.5552700082. Note that the first 3 decimals coincide. The cubic root of 864073 is about 95.2467454564.

The spelling of 864073 in words is "eight hundred sixty-four thousand, seventy-three".