283978233 has 24 divisors (see below), whose sum is σ = 511407936. Its totient is φ = 147520800.

The previous prime is 283978231. The next prime is 283978271. The reversal of 283978233 is 332879382.

It is a happy number.

283978233 is a `hidden beast` number, since 28 + 397 + 8 + 233 = 666.

It is not a de Polignac number, because 283978233 - 2¹ = 283978231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (283978231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204198 + ... + 205583.

It is an arithmetic number, because the mean of its divisors is an integer number (21308664).

Almost surely, 2^283978233 is an apocalyptic number.

It is an amenable number.

283978233 is a deficient number, since it is larger than the sum of its proper divisors (227429703).

283978233 is a wasteful number, since it uses less digits than its factorization.

283978233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409805 (or 409802 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 283978233 is about 16851.6537170688. The cubic root of 283978233 is about 657.2970515808.

The spelling of 283978233 in words is "two hundred eighty-three million, nine hundred seventy-eight thousand, two hundred thirty-three".