867904 has 28 divisors (see below), whose sum is σ = 1755648. Its totient is φ = 425600.

The previous prime is 867887. The next prime is 867913. The reversal of 867904 is 409768.

It is a pancake number, because a pancake can be divided into 867904 parts by 1317 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 867904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4449 + ... + 4639.

2⁸⁶⁷⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 867904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877824).

867904 is an abundant number, since it is smaller than the sum of its proper divisors (887744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

867904 is a wasteful number, since it uses less digits than its factorization.

867904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 867904 is about 931.6136538287. The cubic root of 867904 is about 95.3873016133.

It can be divided in two parts, 867 and 904, that added together give a palindrome (1771).

The spelling of 867904 in words is "eight hundred sixty-seven thousand, nine hundred four".