1028778363 has 6 divisors (see below), whose sum is σ = 1486013204. Its totient is φ = 685852236.

The previous prime is 1028778349. The next prime is 1028778383. The reversal of 1028778363 is 3638778201.

1028778363 is a `hidden beast` number, since 1 + 0 + 287 + 7 + 8 + 363 = 666.

It is not a de Polignac number, because 1028778363 - 2⁶ = 1028778299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028778383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57154345 + ... + 57154362.

Almost surely, 2^1028778363 is an apocalyptic number.

1028778363 is a deficient number, since it is larger than the sum of its proper divisors (457234841).

1028778363 is a wasteful number, since it uses less digits than its factorization.

1028778363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114308713 (or 114308710 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 1028778363 is about 32074.5750244645. The cubic root of 1028778363 is about 1009.5022096866.

The spelling of 1028778363 in words is "one billion, twenty-eight million, seven hundred seventy-eight thousand, three hundred sixty-three".