9767661 has 8 divisors (see below), whose sum is σ = 13170240. Its totient is φ = 6438432.

The previous prime is 9767657. The next prime is 9767671. The reversal of 9767661 is 1667679.

9767661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9767661 - 2² = 9767657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9767671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18025 + ... + 18558.

It is an arithmetic number, because the mean of its divisors is an integer number (1646280).

Almost surely, 2^9767661 is an apocalyptic number.

It is an amenable number.

9767661 is a deficient number, since it is larger than the sum of its proper divisors (3402579).

9767661 is a wasteful number, since it uses less digits than its factorization.

9767661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36675.

The product of its digits is 95256, while the sum is 42.

The square root of 9767661 is about 3125.3257430226. The cubic root of 9767661 is about 213.7618467494.

The spelling of 9767661 in words is "nine million, seven hundred sixty-seven thousand, six hundred sixty-one".