284449091 has 2 divisors, whose sum is σ = 284449092. Its totient is φ = 284449090.

The previous prime is 284449069. The next prime is 284449111. The reversal of 284449091 is 190944482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 284449091 - 2¹⁰ = 284448067 is a prime.

It is a super-2 number, since 2×284449091² = 161822570741452562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (284449001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142224545 + 142224546.

It is an arithmetic number, because the mean of its divisors is an integer number (142224546).

Almost surely, 2^284449091 is an apocalyptic number.

284449091 is a deficient number, since it is larger than the sum of its proper divisors (1).

284449091 is an equidigital number, since it uses as much as digits as its factorization.

284449091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 284449091 is about 16865.6186070953. The cubic root of 284449091 is about 657.6601341951.

The spelling of 284449091 in words is "two hundred eighty-four million, four hundred forty-nine thousand, ninety-one".