9787641 has 8 divisors (see below), whose sum is σ = 13737120. Its totient is φ = 6181632.

The previous prime is 9787639. The next prime is 9787649. The reversal of 9787641 is 1467879.

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

It is not a de Polignac number, because 9787641 - 2¹ = 9787639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9787593 and 9787602.

It is not an unprimeable number, because it can be changed into a prime (9787649) 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 7 ways as a sum of consecutive naturals, for example, 85800 + ... + 85913.

It is an arithmetic number, because the mean of its divisors is an integer number (1717140).

Almost surely, 2^9787641 is an apocalyptic number.

It is an amenable number.

9787641 is a deficient number, since it is larger than the sum of its proper divisors (3949479).

9787641 is a wasteful number, since it uses less digits than its factorization.

9787641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171735.

The product of its digits is 84672, while the sum is 42.

The square root of 9787641 is about 3128.5205768861. The cubic root of 9787641 is about 213.9074992546.

The spelling of 9787641 in words is "nine million, seven hundred eighty-seven thousand, six hundred forty-one".