867128 has 16 divisors (see below), whose sum is σ = 1642680. Its totient is φ = 429088.

The previous prime is 867121. The next prime is 867131. The reversal of 867128 is 821768.

It is a junction number, because it is equal to n+sod(n) for n = 867094 and 867103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867121) 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, 350 + ... + 1362.

2⁸⁶⁷¹²⁸ is an apocalyptic number.

It is an amenable number.

867128 is a deficient number, since it is larger than the sum of its proper divisors (775552).

867128 is a wasteful number, since it uses less digits than its factorization.

867128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1122 counting only the distinct ones).

The product of its digits is 5376, while the sum is 32.

The square root of 867128 is about 931.1970790332. The cubic root of 867128 is about 95.3588642831.

The spelling of 867128 in words is "eight hundred sixty-seven thousand, one hundred twenty-eight".