974209 has 4 divisors (see below), whose sum is σ = 978004. Its totient is φ = 970416.

The previous prime is 974189. The next prime is 974213. The reversal of 974209 is 902479.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 902479 = 17 ⋅53087.

It can be written as a sum of positive squares in 2 ways, for example, as 595984 + 378225 = 772^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 974209 - 2⁵ = 974177 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (974249) 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, 1482 + ... + 2035.

It is an arithmetic number, because the mean of its divisors is an integer number (244501).

2⁹⁷⁴²⁰⁹ is an apocalyptic number.

It is an amenable number.

974209 is a deficient number, since it is larger than the sum of its proper divisors (3795).

974209 is a wasteful number, since it uses less digits than its factorization.

974209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 974209 is about 987.0202632165. The cubic root of 974209 is about 99.1328014047.

The spelling of 974209 in words is "nine hundred seventy-four thousand, two hundred nine".