9775425 has 72 divisors (see below), whose sum is σ = 19186272. Its totient is φ = 4352000.

The previous prime is 9775399. The next prime is 9775427. The reversal of 9775425 is 5245779.

It is not a de Polignac number, because 9775425 - 2⁸ = 9775169 is a prime.

It is a d-powerful number, because it can be written as 9⁷ + 7 + 7⁷ + 5⁹ + 4⁹ + 2⁹ + 5⁹ .

It is not an unprimeable number, because it can be changed into a prime (9775427) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 238405 + ... + 238445.

It is an arithmetic number, because the mean of its divisors is an integer number (266476).

Almost surely, 2^9775425 is an apocalyptic number.

It is an amenable number.

9775425 is a deficient number, since it is larger than the sum of its proper divisors (9410847).

9775425 is a wasteful number, since it uses less digits than its factorization.

9775425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 77 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The square root of 9775425 is about 3126.5676068174. The cubic root of 9775425 is about 213.8184692250.

It can be divided in two parts, 97754 and 25, that added together give a palindrome (97779).

The spelling of 9775425 in words is "nine million, seven hundred seventy-five thousand, four hundred twenty-five".