928420205 has 8 divisors (see below), whose sum is σ = 1129366392. Its totient is φ = 732561408.

The previous prime is 928420193. The next prime is 928420219. The reversal of 928420205 is 502024829.

It can be written as a sum of positive squares in 4 ways, for example, as 243049 + 928177156 = 493^2 + 30466^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 928420205 - 2⁴ = 928420189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271444 + ... + 1272173.

It is an arithmetic number, because the mean of its divisors is an integer number (141170799).

Almost surely, 2^928420205 is an apocalyptic number.

It is an amenable number.

928420205 is a deficient number, since it is larger than the sum of its proper divisors (200946187).

928420205 is a wasteful number, since it uses less digits than its factorization.

928420205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543695.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 928420205 is about 30469.9885953375. The cubic root of 928420205 is about 975.5469926534.

The spelling of 928420205 in words is "nine hundred twenty-eight million, four hundred twenty thousand, two hundred five".