9657979 has 4 divisors (see below), whose sum is σ = 9711520. Its totient is φ = 9604440.

The previous prime is 9657961. The next prime is 9658003. The reversal of 9657979 is 9797569.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9797569 = 83 ⋅118043.

It is a cyclic number.

It is not a de Polignac number, because 9657979 - 2⁹ = 9657467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9657959) 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, 26499 + ... + 26860.

It is an arithmetic number, because the mean of its divisors is an integer number (2427880).

Almost surely, 2^9657979 is an apocalyptic number.

9657979 is a deficient number, since it is larger than the sum of its proper divisors (53541).

9657979 is a wasteful number, since it uses less digits than its factorization.

9657979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53540.

The product of its digits is 1071630, while the sum is 52.

The square root of 9657979 is about 3107.7289135316. The cubic root of 9657979 is about 212.9587156499.

The spelling of 9657979 in words is "nine million, six hundred fifty-seven thousand, nine hundred seventy-nine".