1002928609 has 4 divisors (see below), whose sum is σ = 1003827604. Its totient is φ = 1002029616.

The previous prime is 1002928601. The next prime is 1002928627. The reversal of 1002928609 is 9068292001.

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 394221025 + 608707584 = 19855^2 + 24672^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002928609 - 2³ = 1002928601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002928601) 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, 447822 + ... + 450055.

It is an arithmetic number, because the mean of its divisors is an integer number (250956901).

Almost surely, 2^1002928609 is an apocalyptic number.

It is an amenable number.

1002928609 is a deficient number, since it is larger than the sum of its proper divisors (898995).

1002928609 is an equidigital number, since it uses as much as digits as its factorization.

1002928609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898994.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1002928609 is about 31669.0481227333. The cubic root of 1002928609 is about 1000.9752515752.

The spelling of 1002928609 in words is "one billion, two million, nine hundred twenty-eight thousand, six hundred nine".