9690642 has 24 divisors (see below), whose sum is σ = 22612044. Its totient is φ = 2981664.

The previous prime is 9690641. The next prime is 9690671. The reversal of 9690642 is 2460969.

9690642 is a `hidden beast` number, since 9 + 6 + 9 + 0 + 642 = 666.

9690642 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9678321 + 12321 = 3111^2 + 111^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9690597 and 9690606.

It is not an unprimeable number, because it can be changed into a prime (9690641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20473 + ... + 20940.

Almost surely, 2^9690642 is an apocalyptic number.

9690642 is an abundant number, since it is smaller than the sum of its proper divisors (12921402).

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

9690642 is a wasteful number, since it uses less digits than its factorization.

9690642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41434 (or 41431 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 9690642 is about 3112.9796016036. The cubic root of 9690642 is about 213.1985188811.

The spelling of 9690642 in words is "nine million, six hundred ninety thousand, six hundred forty-two".