9639977 has 8 divisors (see below), whose sum is σ = 10295040. Its totient is φ = 9006480.

The previous prime is 9639947. The next prime is 9639979. The reversal of 9639977 is 7799369.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9639977 - 2⁶ = 9639913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9639979) 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, 4463 + ... + 6260.

It is an arithmetic number, because the mean of its divisors is an integer number (1286880).

Almost surely, 2^9639977 is an apocalyptic number.

It is an amenable number.

9639977 is a deficient number, since it is larger than the sum of its proper divisors (655063).

9639977 is a wasteful number, since it uses less digits than its factorization.

9639977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10783.

The product of its digits is 642978, while the sum is 50.

The square root of 9639977 is about 3104.8312353492. The cubic root of 9639977 is about 212.8263184820.

The spelling of 9639977 in words is "nine million, six hundred thirty-nine thousand, nine hundred seventy-seven".