9805057 has 2 divisors, whose sum is σ = 9805058. Its totient is φ = 9805056.

The previous prime is 9805001. The next prime is 9805063. The reversal of 9805057 is 7505089.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9678321 + 126736 = 3111^2 + 356^2 .

It is an emirp because it is prime and its reverse (7505089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9805057 - 2²³ = 1416449 is a prime.

It is a super-2 number, since 2×9805057² = 192278285546498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9805067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4902528 + 4902529.

It is an arithmetic number, because the mean of its divisors is an integer number (4902529).

Almost surely, 2^9805057 is an apocalyptic number.

It is an amenable number.

9805057 is a deficient number, since it is larger than the sum of its proper divisors (1).

9805057 is an equidigital number, since it uses as much as digits as its factorization.

9805057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 9805057 is about 3131.3027640265. The cubic root of 9805057 is about 214.0342988085.

Subtracting from 9805057 its reverse (7505089), we obtain a cube (2299968 = 132³).

The spelling of 9805057 in words is "nine million, eight hundred five thousand, fifty-seven".