1028677878 has 24 divisors (see below), whose sum is σ = 2236420368. Its totient is φ = 341720592.

The previous prime is 1028677817. The next prime is 1028677883. The reversal of 1028677878 is 8787768201.

1028677878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92250 + ... + 102797.

It is an arithmetic number, because the mean of its divisors is an integer number (93184182).

Almost surely, 2^1028677878 is an apocalyptic number.

1028677878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1028677878 is an abundant number, since it is smaller than the sum of its proper divisors (1207742490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1028677878 is a wasteful number, since it uses less digits than its factorization.

1028677878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195348 (or 195345 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 54.

The square root of 1028677878 is about 32073.0085585996. The cubic root of 1028677878 is about 1009.4693412101.

The spelling of 1028677878 in words is "one billion, twenty-eight million, six hundred seventy-seven thousand, eight hundred seventy-eight".