9956642 has 8 divisors (see below), whose sum is σ = 15416832. Its totient is φ = 4817700.

The previous prime is 9956641. The next prime is 9956699. The reversal of 9956642 is 2466599.

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

It is a self number, because there is not a number n which added to its sum of digits gives 9956642.

It is not an unprimeable number, because it can be changed into a prime (9956641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80234 + ... + 80357.

It is an arithmetic number, because the mean of its divisors is an integer number (1927104).

Almost surely, 2^9956642 is an apocalyptic number.

9956642 is a deficient number, since it is larger than the sum of its proper divisors (5460190).

9956642 is a wasteful number, since it uses less digits than its factorization.

9956642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160624.

The product of its digits is 116640, while the sum is 41.

The square root of 9956642 is about 3155.4147112543. The cubic root of 9956642 is about 215.1316446344.

The spelling of 9956642 in words is "nine million, nine hundred fifty-six thousand, six hundred forty-two".