283813 has 2 divisors, whose sum is σ = 283814. Its totient is φ = 283812.

The previous prime is 283807. The next prime is 283817. The reversal of 283813 is 318382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277729 + 6084 = 527^2 + 78^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-283813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (283817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141906 + 141907.

It is an arithmetic number, because the mean of its divisors is an integer number (141907).

2²⁸³⁸¹³ is an apocalyptic number.

It is an amenable number.

283813 is a deficient number, since it is larger than the sum of its proper divisors (1).

283813 is an equidigital number, since it uses as much as digits as its factorization.

283813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 283813 is about 532.7410252646. The cubic root of 283813 is about 65.7169543880.

The spelling of 283813 in words is "two hundred eighty-three thousand, eight hundred thirteen".