9778057 has 2 divisors, whose sum is σ = 9778058. Its totient is φ = 9778056.

The previous prime is 9778039. The next prime is 9778061. The reversal of 9778057 is 7508779.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5363856 + 4414201 = 2316^2 + 2101^2 .

It is a cyclic number.

It is not a de Polignac number, because 9778057 - 2¹⁵ = 9745289 is a prime.

It is a super-2 number, since 2×9778057² = 191220797390498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9778037) 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, 4889028 + 4889029.

It is an arithmetic number, because the mean of its divisors is an integer number (4889029).

Almost surely, 2^9778057 is an apocalyptic number.

It is an amenable number.

9778057 is a deficient number, since it is larger than the sum of its proper divisors (1).

9778057 is an equidigital number, since it uses as much as digits as its factorization.

9778057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 123480, while the sum is 43.

The square root of 9778057 is about 3126.9884873469. The cubic root of 9778057 is about 213.8376574687.

The spelling of 9778057 in words is "nine million, seven hundred seventy-eight thousand, fifty-seven".