928325561 has 4 divisors (see below), whose sum is σ = 933135732. Its totient is φ = 923515392.

The previous prime is 928325551. The next prime is 928325569. The reversal of 928325561 is 165523829.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 437437225 + 490888336 = 20915^2 + 22156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-928325561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (928325569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2404796 + ... + 2405181.

It is an arithmetic number, because the mean of its divisors is an integer number (233283933).

Almost surely, 2^928325561 is an apocalyptic number.

It is an amenable number.

928325561 is a deficient number, since it is larger than the sum of its proper divisors (4810171).

928325561 is a wasteful number, since it uses less digits than its factorization.

928325561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810170.

The product of its digits is 129600, while the sum is 41.

The square root of 928325561 is about 30468.4354865818. The cubic root of 928325561 is about 975.5138421444.

The spelling of 928325561 in words is "nine hundred twenty-eight million, three hundred twenty-five thousand, five hundred sixty-one".