1028287101 has 8 divisors (see below), whose sum is σ = 1374217600. Its totient is φ = 683940672.

The previous prime is 1028287067. The next prime is 1028287129. The reversal of 1028287101 is 1017828201.

It is a happy number.

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

It is not a de Polignac number, because 1028287101 - 2¹¹ = 1028285053 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 (1028287171) 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, 394501 + ... + 397098.

It is an arithmetic number, because the mean of its divisors is an integer number (171777200).

Almost surely, 2^1028287101 is an apocalyptic number.

It is an amenable number.

1028287101 is a deficient number, since it is larger than the sum of its proper divisors (345930499).

1028287101 is an equidigital number, since it uses as much as digits as its factorization.

1028287101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792035.

The product of its (nonzero) digits is 1792, while the sum is 30.

The square root of 1028287101 is about 32066.9159882892. The cubic root of 1028287101 is about 1009.3414983510.

The spelling of 1028287101 in words is "one billion, twenty-eight million, two hundred eighty-seven thousand, one hundred one".