9666977 has 4 divisors (see below), whose sum is σ = 9688320. Its totient is φ = 9645636.

The previous prime is 9666941. The next prime is 9666989. The reversal of 9666977 is 7796669.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9666977 - 2²² = 5472673 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9666277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9977 + ... + 10902.

It is an arithmetic number, because the mean of its divisors is an integer number (2422080).

Almost surely, 2^9666977 is an apocalyptic number.

It is an amenable number.

9666977 is a deficient number, since it is larger than the sum of its proper divisors (21343).

9666977 is a wasteful number, since it uses less digits than its factorization.

9666977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21342.

The product of its digits is 857304, while the sum is 50.

The square root of 9666977 is about 3109.1762574676. The cubic root of 9666977 is about 213.0248305084.

The spelling of 9666977 in words is "nine million, six hundred sixty-six thousand, nine hundred seventy-seven".