654928 has 10 divisors (see below), whose sum is σ = 1268954. Its totient is φ = 327456.

The previous prime is 654923. The next prime is 654931. The reversal of 654928 is 829456.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 501264 + 153664 = 708^2 + 392^2 .

It is a junction number, because it is equal to n+sod(n) for n = 654893 and 654902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654923) 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, 20451 + ... + 20482.

2⁶⁵⁴⁹²⁸ is an apocalyptic number.

It is an amenable number.

654928 is a deficient number, since it is larger than the sum of its proper divisors (614026).

654928 is a wasteful number, since it uses less digits than its factorization.

654928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40941 (or 40935 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 654928 is about 809.2762198409. The cubic root of 654928 is about 86.8422737870.

The spelling of 654928 in words is "six hundred fifty-four thousand, nine hundred twenty-eight".