659957928 has 64 divisors (see below), whose sum is σ = 1887600000. Its totient is φ = 188358912.

The previous prime is 659957927. The next prime is 659957971. The reversal of 659957928 is 829759956.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (659957923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238698 + ... + 241446.

It is an arithmetic number, because the mean of its divisors is an integer number (29493750).

Almost surely, 2^659957928 is an apocalyptic number.

It is an amenable number.

659957928 is an abundant number, since it is smaller than the sum of its proper divisors (1227642072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

659957928 is a wasteful number, since it uses less digits than its factorization.

659957928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4194 (or 4190 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 60.

The square root of 659957928 is about 25689.6463190913. The cubic root of 659957928 is about 870.6402685446.

The spelling of 659957928 in words is "six hundred fifty-nine million, nine hundred fifty-seven thousand, nine hundred twenty-eight".