287428713 has 64 divisors (see below), whose sum is σ = 479001600. Its totient is φ = 150716160.

The previous prime is 287428711. The next prime is 287428717. The reversal of 287428713 is 317824782.

It is not a de Polignac number, because 287428713 - 2¹ = 287428711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (287428711) 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 in 63 ways as a sum of consecutive naturals, for example, 1458931 + ... + 1459127.

It is an arithmetic number, because the mean of its divisors is an integer number (7484400).

Almost surely, 2^287428713 is an apocalyptic number.

It is an amenable number.

287428713 is a deficient number, since it is larger than the sum of its proper divisors (191572887).

287428713 is a wasteful number, since it uses less digits than its factorization.

287428713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422.

The product of its digits is 150528, while the sum is 42.

The square root of 287428713 is about 16953.7226885425. The cubic root of 287428713 is about 659.9485060835.

The spelling of 287428713 in words is "two hundred eighty-seven million, four hundred twenty-eight thousand, seven hundred thirteen".