287628743 has 2 divisors, whose sum is σ = 287628744. Its totient is φ = 287628742.

The previous prime is 287628703. The next prime is 287628773. The reversal of 287628743 is 347826782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 287628743 - 2²⁰ = 286580167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287628703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143814371 + 143814372.

It is an arithmetic number, because the mean of its divisors is an integer number (143814372).

Almost surely, 2^287628743 is an apocalyptic number.

287628743 is a deficient number, since it is larger than the sum of its proper divisors (1).

287628743 is an equidigital number, since it uses as much as digits as its factorization.

287628743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 47.

The square root of 287628743 is about 16959.6209568492. The cubic root of 287628743 is about 660.1015630358.

The spelling of 287628743 in words is "two hundred eighty-seven million, six hundred twenty-eight thousand, seven hundred forty-three".