864485 has 8 divisors (see below), whose sum is σ = 1062936. Its totient is φ = 674560.

The previous prime is 864449. The next prime is 864491. The reversal of 864485 is 584468.

864485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 58081 + 806404 = 241^2 + 898^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 864485 - 2¹⁴ = 848101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1904 + ... + 2313.

It is an arithmetic number, because the mean of its divisors is an integer number (132867).

2⁸⁶⁴⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

864485 is a deficient number, since it is larger than the sum of its proper divisors (198451).

864485 is a wasteful number, since it uses less digits than its factorization.

864485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263.

The product of its digits is 30720, while the sum is 35.

The square root of 864485 is about 929.7768549496. The cubic root of 864485 is about 95.2618813009.

The spelling of 864485 in words is "eight hundred sixty-four thousand, four hundred eighty-five".