287274227 has 2 divisors, whose sum is σ = 287274228. Its totient is φ = 287274226.

The previous prime is 287274181. The next prime is 287274233. The reversal of 287274227 is 722472782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 287274227 - 2¹⁸ = 287012083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (287274287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143637113 + 143637114.

It is an arithmetic number, because the mean of its divisors is an integer number (143637114).

Almost surely, 2^287274227 is an apocalyptic number.

287274227 is a deficient number, since it is larger than the sum of its proper divisors (1).

287274227 is an equidigital number, since it uses as much as digits as its factorization.

287274227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 175616, while the sum is 41.

The square root of 287274227 is about 16949.1659676811. The cubic root of 287274227 is about 659.8302494266.

The spelling of 287274227 in words is "two hundred eighty-seven million, two hundred seventy-four thousand, two hundred twenty-seven".