928661 has 2 divisors, whose sum is σ = 928662. Its totient is φ = 928660.

The previous prime is 928651. The next prime is 928679. The reversal of 928661 is 166829.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 844561 + 84100 = 919^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 928661 - 2⁶ = 928597 is a prime.

It is a super-2 number, since 2×928661² = 1724822505842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (928621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464330 + 464331.

It is an arithmetic number, because the mean of its divisors is an integer number (464331).

2⁹²⁸⁶⁶¹ is an apocalyptic number.

It is an amenable number.

928661 is a deficient number, since it is larger than the sum of its proper divisors (1).

928661 is an equidigital number, since it uses as much as digits as its factorization.

928661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 928661 is about 963.6705868708. The cubic root of 928661 is about 97.5631324630.

The spelling of 928661 in words is "nine hundred twenty-eight thousand, six hundred sixty-one".