874209 has 24 divisors (see below), whose sum is σ = 1431840. Its totient is φ = 471744.

The previous prime is 874193. The next prime is 874213. The reversal of 874209 is 902478.

It is not a de Polignac number, because 874209 - 2⁴ = 874193 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874229) 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 23 ways as a sum of consecutive naturals, for example, 2637 + ... + 2949.

It is an arithmetic number, because the mean of its divisors is an integer number (59660).

2⁸⁷⁴²⁰⁹ is an apocalyptic number.

It is an amenable number.

874209 is a deficient number, since it is larger than the sum of its proper divisors (557631).

874209 is a wasteful number, since it uses less digits than its factorization.

874209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 874209 is about 934.9914438111. The cubic root of 874209 is about 95.6177289529.

The spelling of 874209 in words is "eight hundred seventy-four thousand, two hundred nine".