285623383 has 2 divisors, whose sum is σ = 285623384. Its totient is φ = 285623382.

The previous prime is 285623363. The next prime is 285623417. The reversal of 285623383 is 383326582.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285623383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285623363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142811691 + 142811692.

It is an arithmetic number, because the mean of its divisors is an integer number (142811692).

Almost surely, 2^285623383 is an apocalyptic number.

285623383 is a deficient number, since it is larger than the sum of its proper divisors (1).

285623383 is an equidigital number, since it uses as much as digits as its factorization.

285623383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 285623383 is about 16900.3959421074. The cubic root of 285623383 is about 658.5638984037.

The spelling of 285623383 in words is "two hundred eighty-five million, six hundred twenty-three thousand, three hundred eighty-three".