1028855503 has 8 divisors (see below), whose sum is σ = 1123177328. Its totient is φ = 936702144.

The previous prime is 1028855501. The next prime is 1028855543. The reversal of 1028855503 is 3055588201.

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

It is a cyclic number.

It is not a de Polignac number, because 1028855503 - 2¹ = 1028855501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028855501) 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, 541125 + ... + 543022.

It is an arithmetic number, because the mean of its divisors is an integer number (140397166).

Almost surely, 2^1028855503 is an apocalyptic number.

1028855503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1028855503 is a deficient number, since it is larger than the sum of its proper divisors (94321825).

1028855503 is a wasteful number, since it uses less digits than its factorization.

1028855503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084233.

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 1028855503 is about 32075.7775120105. Note that the first 3 decimals coincide. The cubic root of 1028855503 is about 1009.5274406003.

The spelling of 1028855503 in words is "one billion, twenty-eight million, eight hundred fifty-five thousand, five hundred three".