7928566900 has 36 divisors (see below), whose sum is σ = 17953038432. Its totient is φ = 3033537760.

The previous prime is 7928566889. The next prime is 7928566901. The reversal of 7928566900 is 96658297.

It is a happy number.

It is a super-2 number, since 2×7928566900² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7928566901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1721302 + ... + 1725901.

It is an arithmetic number, because the mean of its divisors is an integer number (498695512).

Almost surely, 2^7928566900 is an apocalyptic number.

It is an amenable number.

7928566900 is an abundant number, since it is smaller than the sum of its proper divisors (10024471532).

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

7928566900 is a wasteful number, since it uses less digits than its factorization.

7928566900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447240 (or 3447233 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 7928566900 is about 89042.5005264340. The cubic root of 7928566900 is about 1994.0294355833.

The spelling of 7928566900 in words is "seven billion, nine hundred twenty-eight million, five hundred sixty-six thousand, nine hundred".