10973209 has 4 divisors (see below), whose sum is σ = 11817316. Its totient is φ = 10129104.

The previous prime is 10973197. The next prime is 10973219. The reversal of 10973209 is 90237901.

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 7182400 + 3790809 = 2680^2 + 1947^2 .

It is a cyclic number.

It is not a de Polignac number, because 10973209 - 2¹⁵ = 10940441 is a prime.

It is a super-2 number, since 2×10973209² = 240822631515362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10973219) 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, 422034 + ... + 422059.

It is an arithmetic number, because the mean of its divisors is an integer number (2954329).

Almost surely, 2^10973209 is an apocalyptic number.

It is an amenable number.

10973209 is a deficient number, since it is larger than the sum of its proper divisors (844107).

10973209 is an equidigital number, since it uses as much as digits as its factorization.

10973209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844106.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 10973209 is about 3312.5834329115. The cubic root of 10973209 is about 222.2173087895.

The spelling of 10973209 in words is "ten million, nine hundred seventy-three thousand, two hundred nine".