10809457 has 2 divisors, whose sum is σ = 10809458. Its totient is φ = 10809456.

The previous prime is 10809451. The next prime is 10809493. The reversal of 10809457 is 75490801.

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., 7420176 + 3389281 = 2724^2 + 1841^2 .

It is a cyclic number.

It is not a de Polignac number, because 10809457 - 2²³ = 2420849 is a prime.

It is not a weakly prime, because it can be changed into another prime (10809451) 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 as a sum of consecutive naturals, namely, 5404728 + 5404729.

It is an arithmetic number, because the mean of its divisors is an integer number (5404729).

Almost surely, 2^10809457 is an apocalyptic number.

It is an amenable number.

10809457 is a deficient number, since it is larger than the sum of its proper divisors (1).

10809457 is an equidigital number, since it uses as much as digits as its factorization.

10809457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 10809457 is about 3287.7738669197. The cubic root of 10809457 is about 221.1063894030.

The spelling of 10809457 in words is "ten million, eight hundred nine thousand, four hundred fifty-seven".