10809213 has 16 divisors (see below), whose sum is σ = 14783040. Its totient is φ = 7023104.

The previous prime is 10809179. The next prime is 10809221. The reversal of 10809213 is 31290801.

It is a cyclic number.

It is not a de Polignac number, because 10809213 - 2¹² = 10805117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10809283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30445 + ... + 30797.

It is an arithmetic number, because the mean of its divisors is an integer number (923940).

Almost surely, 2^10809213 is an apocalyptic number.

It is an amenable number.

10809213 is a deficient number, since it is larger than the sum of its proper divisors (3973827).

10809213 is a wasteful number, since it uses less digits than its factorization.

10809213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 10809213 is about 3287.7367595353. The cubic root of 10809213 is about 221.1047257251.

The spelling of 10809213 in words is "ten million, eight hundred nine thousand, two hundred thirteen".