9770778 has 12 divisors (see below), whose sum is σ = 21170058. Its totient is φ = 3256920.

The previous prime is 9770773. The next prime is 9770779. The reversal of 9770778 is 8770779.

It can be written as a sum of positive squares in only one way, i.e., 7601049 + 2169729 = 2757^2 + 1473^2 .

It is not an unprimeable number, because it can be changed into a prime (9770773) 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 in 5 ways as a sum of consecutive naturals, for example, 271393 + ... + 271428.

Almost surely, 2^9770778 is an apocalyptic number.

9770778 is an abundant number, since it is smaller than the sum of its proper divisors (11399280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9770778 is a wasteful number, since it uses less digits than its factorization.

9770778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542829 (or 542826 counting only the distinct ones).

The product of its (nonzero) digits is 172872, while the sum is 45.

The square root of 9770778 is about 3125.8243712659. The cubic root of 9770778 is about 213.7845824830.

Subtracting from 9770778 its reverse (8770779), we obtain a palindrome (999999).

The spelling of 9770778 in words is "nine million, seven hundred seventy thousand, seven hundred seventy-eight".