285249967 has 2 divisors, whose sum is σ = 285249968. Its totient is φ = 285249966.

The previous prime is 285249959. The next prime is 285249977. The reversal of 285249967 is 769942582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 285249967 - 2³ = 285249959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285249977) 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, 142624983 + 142624984.

It is an arithmetic number, because the mean of its divisors is an integer number (142624984).

Almost surely, 2^285249967 is an apocalyptic number.

285249967 is a deficient number, since it is larger than the sum of its proper divisors (1).

285249967 is an equidigital number, since it uses as much as digits as its factorization.

285249967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 52.

The square root of 285249967 is about 16889.3447771073. The cubic root of 285249967 is about 658.2767772526.

The spelling of 285249967 in words is "two hundred eighty-five million, two hundred forty-nine thousand, nine hundred sixty-seven".