9809057 has 2 divisors, whose sum is σ = 9809058. Its totient is φ = 9809056.

The previous prime is 9809029. The next prime is 9809069. The reversal of 9809057 is 7509089.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9296401 + 512656 = 3049^2 + 716^2 .

It is a cyclic number.

It is not a de Polignac number, because 9809057 - 2¹⁰ = 9808033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9809057.

It is not a weakly prime, because it can be changed into another prime (9809027) 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, 4904528 + 4904529.

It is an arithmetic number, because the mean of its divisors is an integer number (4904529).

Almost surely, 2^9809057 is an apocalyptic number.

It is an amenable number.

9809057 is a deficient number, since it is larger than the sum of its proper divisors (1).

9809057 is an equidigital number, since it uses as much as digits as its factorization.

9809057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 9809057 is about 3131.9414106908. The cubic root of 9809057 is about 214.0634001454.

Subtracting from 9809057 its reverse (7509089), we obtain a cube (2299968 = 132³).

The spelling of 9809057 in words is "nine million, eight hundred nine thousand, fifty-seven".