928109 has 24 divisors (see below), whose sum is σ = 1225728. Its totient is φ = 695520.

The previous prime is 928099. The next prime is 928111. The reversal of 928109 is 901829.

It is not a de Polignac number, because 928109 - 2⁸ = 927853 is a prime.

It is a super-2 number, since 2×928109² = 1722772631762, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 928109.

It is not an unprimeable number, because it can be changed into a prime (928139) 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 in 23 ways as a sum of consecutive naturals, for example, 19724 + ... + 19770.

It is an arithmetic number, because the mean of its divisors is an integer number (51072).

2⁹²⁸¹⁰⁹ is an apocalyptic number.

It is an amenable number.

928109 is a deficient number, since it is larger than the sum of its proper divisors (297619).

928109 is a wasteful number, since it uses less digits than its factorization.

928109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 928109 is about 963.3841393754. The cubic root of 928109 is about 97.5437979864.

The spelling of 928109 in words is "nine hundred twenty-eight thousand, one hundred nine".