9685642 has 4 divisors (see below), whose sum is σ = 14528466. Its totient is φ = 4842820.

The previous prime is 9685639. The next prime is 9685651. The reversal of 9685642 is 2465869.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2465869 = 7 ⋅352267.

It can be written as a sum of positive squares in only one way, i.e., 7722841 + 1962801 = 2779^2 + 1401^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9685595 and 9685604.

It is an unprimeable number.

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, 2421409 + ... + 2421412.

Almost surely, 2^9685642 is an apocalyptic number.

9685642 is a deficient number, since it is larger than the sum of its proper divisors (4842824).

9685642 is a wasteful number, since it uses less digits than its factorization.

9685642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842823.

The product of its digits is 103680, while the sum is 40.

The square root of 9685642 is about 3112.1764088817. The cubic root of 9685642 is about 213.1618451504.

The spelling of 9685642 in words is "nine million, six hundred eighty-five thousand, six hundred forty-two".