10272809 has 2 divisors, whose sum is σ = 10272810. Its totient is φ = 10272808.

The previous prime is 10272803. The next prime is 10272817. The reversal of 10272809 is 90827201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10272025 + 784 = 3205^2 + 28^2 .

It is a cyclic number.

It is not a de Polignac number, because 10272809 - 2¹⁶ = 10207273 is a prime.

It is not a weakly prime, because it can be changed into another prime (10272803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5136404 + 5136405.

It is an arithmetic number, because the mean of its divisors is an integer number (5136405).

Almost surely, 2^10272809 is an apocalyptic number.

It is an amenable number.

10272809 is a deficient number, since it is larger than the sum of its proper divisors (1).

10272809 is an equidigital number, since it uses as much as digits as its factorization.

10272809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 10272809 is about 3205.1223065587. The cubic root of 10272809 is about 217.3850822005.

The spelling of 10272809 in words is "ten million, two hundred seventy-two thousand, eight hundred nine".