1028025717 has 8 divisors (see below), whose sum is σ = 1451330496. Its totient is φ = 645035712.

The previous prime is 1028025707. The next prime is 1028025737. The reversal of 1028025717 is 7175208201.

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

It is not a de Polignac number, because 1028025717 - 2⁴ = 1028025701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028025707) 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, 10078633 + ... + 10078734.

It is an arithmetic number, because the mean of its divisors is an integer number (181416312).

Almost surely, 2^1028025717 is an apocalyptic number.

1028025717 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1028025717 is a deficient number, since it is larger than the sum of its proper divisors (423304779).

1028025717 is a wasteful number, since it uses less digits than its factorization.

1028025717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20157387.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 1028025717 is about 32062.8401268509. The cubic root of 1028025717 is about 1009.2559683872.

The spelling of 1028025717 in words is "one billion, twenty-eight million, twenty-five thousand, seven hundred seventeen".