874840 has 16 divisors (see below), whose sum is σ = 1968480. Its totient is φ = 349920.

The previous prime is 874831. The next prime is 874847. The reversal of 874840 is 48478.

874840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10896 + ... + 10975.

It is an arithmetic number, because the mean of its divisors is an integer number (123030).

2⁸⁷⁴⁸⁴⁰ is an apocalyptic number.

It is an amenable number.

874840 is an abundant number, since it is smaller than the sum of its proper divisors (1093640).

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

874840 is a wasteful number, since it uses less digits than its factorization.

874840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21882 (or 21878 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 874840 is about 935.3288191861. The cubic root of 874840 is about 95.6407288977.

The spelling of 874840 in words is "eight hundred seventy-four thousand, eight hundred forty".