1028568837 has 8 divisors (see below), whose sum is σ = 1374243136. Its totient is φ = 684303552.

The previous prime is 1028568823. The next prime is 1028568841. The reversal of 1028568837 is 7388658201.

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

It is not a de Polignac number, because 1028568837 - 2⁶ = 1028568773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028568137) by changing a digit.

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, 350548 + ... + 353469.

It is an arithmetic number, because the mean of its divisors is an integer number (171780392).

Almost surely, 2^1028568837 is an apocalyptic number.

It is an amenable number.

1028568837 is a deficient number, since it is larger than the sum of its proper divisors (345674299).

1028568837 is an equidigital number, since it uses as much as digits as its factorization.

1028568837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704507.

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 1028568837 is about 32071.3086262472. The cubic root of 1028568837 is about 1009.4336716585.

The spelling of 1028568837 in words is "one billion, twenty-eight million, five hundred sixty-eight thousand, eight hundred thirty-seven".