10809319 has 4 divisors (see below), whose sum is σ = 10860760. Its totient is φ = 10757880.

The previous prime is 10809307. The next prime is 10809343. The reversal of 10809319 is 91390801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91390801 = 5231 ⋅17471.

It is a cyclic number.

It is not a de Polignac number, because 10809319 - 2¹⁵ = 10776551 is a prime.

It is a super-2 number, since 2×10809319² = 233682754487522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10809349) 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, 25404 + ... + 25825.

It is an arithmetic number, because the mean of its divisors is an integer number (2715190).

Almost surely, 2^10809319 is an apocalyptic number.

10809319 is a deficient number, since it is larger than the sum of its proper divisors (51441).

10809319 is an equidigital number, since it uses as much as digits as its factorization.

10809319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51440.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 10809319 is about 3287.7528800079. The cubic root of 10809319 is about 221.1054484735.

The spelling of 10809319 in words is "ten million, eight hundred nine thousand, three hundred nineteen".