867385 has 8 divisors (see below), whose sum is σ = 1063296. Its totient is φ = 678960.

The previous prime is 867371. The next prime is 867389. The reversal of 867385 is 583768.

867385 = 290² + 291² + ... + 299².

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

It is not a de Polignac number, because 867385 - 2⁷ = 867257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (867389) 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 7 ways as a sum of consecutive naturals, for example, 1611 + ... + 2080.

It is an arithmetic number, because the mean of its divisors is an integer number (132912).

2⁸⁶⁷³⁸⁵ is an apocalyptic number.

It is an amenable number.

867385 is a deficient number, since it is larger than the sum of its proper divisors (195911).

867385 is a wasteful number, since it uses less digits than its factorization.

867385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743.

The product of its digits is 40320, while the sum is 37.

The square root of 867385 is about 931.3350632291. The cubic root of 867385 is about 95.3682841947.

The spelling of 867385 in words is "eight hundred sixty-seven thousand, three hundred eighty-five".