285933941 has 2 divisors, whose sum is σ = 285933942. Its totient is φ = 285933940.

The previous prime is 285933917. The next prime is 285933971. The reversal of 285933941 is 149339582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283787716 + 2146225 = 16846^2 + 1465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285933941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285933892 and 285933901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285933971) 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, 142966970 + 142966971.

It is an arithmetic number, because the mean of its divisors is an integer number (142966971).

Almost surely, 2^285933941 is an apocalyptic number.

It is an amenable number.

285933941 is a deficient number, since it is larger than the sum of its proper divisors (1).

285933941 is an equidigital number, since it uses as much as digits as its factorization.

285933941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 44.

The square root of 285933941 is about 16909.5813372183. The cubic root of 285933941 is about 658.8024972235.

The spelling of 285933941 in words is "two hundred eighty-five million, nine hundred thirty-three thousand, nine hundred forty-one".