1028975613 has 8 divisors (see below), whose sum is σ = 1372502208. Its totient is φ = 685716384.

The previous prime is 1028975611. The next prime is 1028975659. The reversal of 1028975613 is 3165798201.

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

It is not a de Polignac number, because 1028975613 - 2¹ = 1028975611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028975611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57681 + ... + 73382.

It is an arithmetic number, because the mean of its divisors is an integer number (171562776).

Almost surely, 2^1028975613 is an apocalyptic number.

It is an amenable number.

1028975613 is a deficient number, since it is larger than the sum of its proper divisors (343526595).

1028975613 is a wasteful number, since it uses less digits than its factorization.

1028975613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133683.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 1028975613 is about 32077.6497424609. The cubic root of 1028975613 is about 1009.5667236102.

The spelling of 1028975613 in words is "one billion, twenty-eight million, nine hundred seventy-five thousand, six hundred thirteen".