1028536271 has 8 divisors (see below), whose sum is σ = 1176187680. Its totient is φ = 881064288.

The previous prime is 1028536237. The next prime is 1028536277. The reversal of 1028536271 is 1726358201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1028536271 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 (1028536277) 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, 32336 + ... + 55701.

It is an arithmetic number, because the mean of its divisors is an integer number (147023460).

Almost surely, 2^1028536271 is an apocalyptic number.

1028536271 is a deficient number, since it is larger than the sum of its proper divisors (147651409).

1028536271 is an equidigital number, since it uses as much as digits as its factorization.

1028536271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89713.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1028536271 is about 32070.8009098619. The cubic root of 1028536271 is about 1009.4230181619.

The spelling of 1028536271 in words is "one billion, twenty-eight million, five hundred thirty-six thousand, two hundred seventy-one".