283949 has 2 divisors, whose sum is σ = 283950. Its totient is φ = 283948.

The previous prime is 283937. The next prime is 283957. The reversal of 283949 is 949382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268324 + 15625 = 518^2 + 125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-283949 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (283909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141974 + 141975.

It is an arithmetic number, because the mean of its divisors is an integer number (141975).

2²⁸³⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

283949 is a deficient number, since it is larger than the sum of its proper divisors (1).

283949 is an equidigital number, since it uses as much as digits as its factorization.

283949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 283949 is about 532.8686517332. The cubic root of 283949 is about 65.7274496537.

The spelling of 283949 in words is "two hundred eighty-three thousand, nine hundred forty-nine".