1028971 has 4 divisors (see below), whose sum is σ = 1050912. Its totient is φ = 1007032.

The previous prime is 1028969. The next prime is 1028981. The reversal of 1028971 is 1798201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1028971 - 2¹ = 1028969 is a prime.

It is a Duffinian number.

1028971 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1028941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10900 + ... + 10993.

It is an arithmetic number, because the mean of its divisors is an integer number (262728).

2^1028971 is an apocalyptic number.

1028971 is a deficient number, since it is larger than the sum of its proper divisors (21941).

1028971 is an equidigital number, since it uses as much as digits as its factorization.

1028971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21940.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1028971 is about 1014.3820779174. The cubic root of 1028971 is about 100.9565214945.

The spelling of 1028971 in words is "one million, twenty-eight thousand, nine hundred seventy-one".