928968561 has 16 divisors (see below), whose sum is σ = 1391716800. Its totient is φ = 612352224.

The previous prime is 928968559. The next prime is 928968589. The reversal of 928968561 is 165869829.

It is a happy number.

It is not a de Polignac number, because 928968561 - 2¹ = 928968559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 928968498 and 928968507.

It is not an unprimeable number, because it can be changed into a prime (928968461) 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, 190891 + ... + 195696.

It is an arithmetic number, because the mean of its divisors is an integer number (86982300).

Almost surely, 2^928968561 is an apocalyptic number.

It is an amenable number.

928968561 is a deficient number, since it is larger than the sum of its proper divisors (462748239).

928968561 is a wasteful number, since it uses less digits than its factorization.

928968561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386685 (or 386679 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 928968561 is about 30478.9855638274. The cubic root of 928968561 is about 975.7390184047.

The spelling of 928968561 in words is "nine hundred twenty-eight million, nine hundred sixty-eight thousand, five hundred sixty-one".