283628784 has 20 divisors (see below), whose sum is σ = 732707816. Its totient is φ = 94542912.

The previous prime is 283628783. The next prime is 283628809. The reversal of 283628784 is 487826382.

It is a happy number.

It is a super-2 number, since 2×283628784² = 160890574226637312, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 5908933 = 283628784 / (2 + 8 + 3 + 6 + 2 + 8 + 7 + 8 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283628783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2954419 + ... + 2954514.

Almost surely, 2^283628784 is an apocalyptic number.

283628784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

283628784 is an abundant number, since it is smaller than the sum of its proper divisors (449079032).

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

283628784 is a wasteful number, since it uses less digits than its factorization.

283628784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5908944 (or 5908938 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 283628784 is about 16841.2821364646. The cubic root of 283628784 is about 657.0273289393.

The spelling of 283628784 in words is "two hundred eighty-three million, six hundred twenty-eight thousand, seven hundred eighty-four".