283778648 has 8 divisors (see below), whose sum is σ = 532084980. Its totient is φ = 141889320.

The previous prime is 283778639. The next prime is 283778653. The reversal of 283778648 is 846877382.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 283778648.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17736158 + ... + 17736173.

Almost surely, 2^283778648 is an apocalyptic number.

It is an amenable number.

283778648 is a deficient number, since it is larger than the sum of its proper divisors (248306332).

283778648 is a wasteful number, since it uses less digits than its factorization.

283778648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35472337 (or 35472333 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 53.

The square root of 283778648 is about 16845.7308538395. The cubic root of 283778648 is about 657.1430287694.

The spelling of 283778648 in words is "two hundred eighty-three million, seven hundred seventy-eight thousand, six hundred forty-eight".