10712809 has 2 divisors, whose sum is σ = 10712810. Its totient is φ = 10712808.

The previous prime is 10712797. The next prime is 10712813. The reversal of 10712809 is 90821701.

10712809 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7371225 + 3341584 = 2715^2 + 1828^2 .

It is a cyclic number.

It is not a de Polignac number, because 10712809 - 2¹¹ = 10710761 is a prime.

It is a super-2 number, since 2×10712809² = 229528553340962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10712899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5356404 + 5356405.

It is an arithmetic number, because the mean of its divisors is an integer number (5356405).

Almost surely, 2^10712809 is an apocalyptic number.

It is an amenable number.

10712809 is a deficient number, since it is larger than the sum of its proper divisors (1).

10712809 is an equidigital number, since it uses as much as digits as its factorization.

10712809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 10712809 is about 3273.0427739338. The cubic root of 10712809 is about 220.4454404701.

The spelling of 10712809 in words is "ten million, seven hundred twelve thousand, eight hundred nine".