9928655 has 12 divisors (see below), whose sum is σ = 13096776. Its totient is φ = 7220400.

The previous prime is 9928619. The next prime is 9928661. The reversal of 9928655 is 5568299.

It is not a de Polignac number, because 9928655 - 2⁶ = 9928591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7601 + ... + 8810.

It is an arithmetic number, because the mean of its divisors is an integer number (1091398).

Almost surely, 2^9928655 is an apocalyptic number.

9928655 is a deficient number, since it is larger than the sum of its proper divisors (3168121).

9928655 is a wasteful number, since it uses less digits than its factorization.

9928655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16438 (or 16427 counting only the distinct ones).

The product of its digits is 194400, while the sum is 44.

The square root of 9928655 is about 3150.9768326663. The cubic root of 9928655 is about 214.9298851954.

The spelling of 9928655 in words is "nine million, nine hundred twenty-eight thousand, six hundred fifty-five".