9640028 has 12 divisors (see below), whose sum is σ = 16999752. Its totient is φ = 4782960.

The previous prime is 9640021. The next prime is 9640031. The reversal of 9640028 is 8200469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9640021) 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, 8675 + ... + 9722.

It is an arithmetic number, because the mean of its divisors is an integer number (1416646).

Almost surely, 2^9640028 is an apocalyptic number.

It is an amenable number.

9640028 is a deficient number, since it is larger than the sum of its proper divisors (7359724).

9640028 is a wasteful number, since it uses less digits than its factorization.

9640028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18532 (or 18530 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 9640028 is about 3104.8394483451. The cubic root of 9640028 is about 212.8266937984.

The spelling of 9640028 in words is "nine million, six hundred forty thousand, twenty-eight".