9640646 has 8 divisors (see below), whose sum is σ = 14851920. Its totient is φ = 4690008.

The previous prime is 9640639. The next prime is 9640661. The reversal of 9640646 is 6460469.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 65066 + ... + 65213.

It is an arithmetic number, because the mean of its divisors is an integer number (1856490).

Almost surely, 2^9640646 is an apocalyptic number.

9640646 is a deficient number, since it is larger than the sum of its proper divisors (5211274).

9640646 is a wasteful number, since it uses less digits than its factorization.

9640646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130318.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 9640646 is about 3104.9389688044. The cubic root of 9640646 is about 212.8312416443.

The spelling of 9640646 in words is "nine million, six hundred forty thousand, six hundred forty-six".