874309 has 4 divisors (see below), whose sum is σ = 876204. Its totient is φ = 872416.

The previous prime is 874303. The next prime is 874331. The reversal of 874309 is 903478.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 334084 + 540225 = 578^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 874309 - 2³ = 874301 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874301) 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, 249 + ... + 1345.

It is an arithmetic number, because the mean of its divisors is an integer number (219051).

2⁸⁷⁴³⁰⁹ is an apocalyptic number.

It is an amenable number.

874309 is a deficient number, since it is larger than the sum of its proper divisors (1895).

874309 is a wasteful number, since it uses less digits than its factorization.

874309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 874309 is about 935.0449187071. The cubic root of 874309 is about 95.6213746899.

The spelling of 874309 in words is "eight hundred seventy-four thousand, three hundred nine".