283778 has 8 divisors (see below), whose sum is σ = 464400. Its totient is φ = 128980.

The previous prime is 283771. The next prime is 283793. The reversal of 283778 is 877382.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (283771) by changing a digit.

283778 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6428 + ... + 6471.

It is an arithmetic number, because the mean of its divisors is an integer number (58050).

2²⁸³⁷⁷⁸ is an apocalyptic number.

283778 is a deficient number, since it is larger than the sum of its proper divisors (180622).

283778 is a wasteful number, since it uses less digits than its factorization.

283778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12912.

The product of its digits is 18816, while the sum is 35.

The square root of 283778 is about 532.7081752705. The cubic root of 283778 is about 65.7142528580.

The spelling of 283778 in words is "two hundred eighty-three thousand, seven hundred seventy-eight".