109782287 has 2 divisors, whose sum is σ = 109782288. Its totient is φ = 109782286.

The previous prime is 109782223. The next prime is 109782317. The reversal of 109782287 is 782287901.

It is a strong prime.

It is an emirp because it is prime and its reverse (782287901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109782287 - 2⁶ = 109782223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109722287) 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, 54891143 + 54891144.

It is an arithmetic number, because the mean of its divisors is an integer number (54891144).

Almost surely, 2^109782287 is an apocalyptic number.

109782287 is a deficient number, since it is larger than the sum of its proper divisors (1).

109782287 is an equidigital number, since it uses as much as digits as its factorization.

109782287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 109782287 is about 10477.7042809959. The cubic root of 109782287 is about 478.8256695378.

The spelling of 109782287 in words is "one hundred nine million, seven hundred eighty-two thousand, two hundred eighty-seven".