9681425 has 12 divisors (see below), whose sum is σ = 12928860. Its totient is φ = 7149120.

The previous prime is 9681421. The next prime is 9681437. The reversal of 9681425 is 5241869.

It can be written as a sum of positive squares in 6 ways, for example, as 3411409 + 6270016 = 1847^2 + 2504^2 .

It is not a de Polignac number, because 9681425 - 2² = 9681421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9681421) 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 11 ways as a sum of consecutive naturals, for example, 14570 + ... + 15219.

It is an arithmetic number, because the mean of its divisors is an integer number (1077405).

Almost surely, 2^9681425 is an apocalyptic number.

It is an amenable number.

9681425 is a deficient number, since it is larger than the sum of its proper divisors (3247435).

9681425 is a wasteful number, since it uses less digits than its factorization.

9681425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29812 (or 29807 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 9681425 is about 3111.4988349668. The cubic root of 9681425 is about 213.1309047134.

The spelling of 9681425 in words is "nine million, six hundred eighty-one thousand, four hundred twenty-five".