9960657 has 16 divisors (see below), whose sum is σ = 16071552. Its totient is φ = 5356800.

The previous prime is 9960653. The next prime is 9960667. The reversal of 9960657 is 7560699.

It is not a de Polignac number, because 9960657 - 2² = 9960653 is a prime.

9960657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9960653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13594 + ... + 14307.

It is an arithmetic number, because the mean of its divisors is an integer number (1004472).

Almost surely, 2^9960657 is an apocalyptic number.

It is an amenable number.

9960657 is a deficient number, since it is larger than the sum of its proper divisors (6110895).

9960657 is a wasteful number, since it uses less digits than its factorization.

9960657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27928.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 9960657 is about 3156.0508551036. The cubic root of 9960657 is about 215.1605579124.

Adding to 9960657 its sum of digits (42), we get a palindrome (9960699).

The spelling of 9960657 in words is "nine million, nine hundred sixty thousand, six hundred fifty-seven".