287425799 has 2 divisors, whose sum is σ = 287425800. Its totient is φ = 287425798.

The previous prime is 287425793. The next prime is 287425819. The reversal of 287425799 is 997524782.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-287425799 is a prime.

It is a super-2 number, since 2×287425799² = 165227179861576802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 287425799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287425793) 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 as a sum of consecutive naturals, namely, 143712899 + 143712900.

It is an arithmetic number, because the mean of its divisors is an integer number (143712900).

Almost surely, 2^287425799 is an apocalyptic number.

287425799 is a deficient number, since it is larger than the sum of its proper divisors (1).

287425799 is an equidigital number, since it uses as much as digits as its factorization.

287425799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 53.

The square root of 287425799 is about 16953.6367484974. The cubic root of 287425799 is about 659.9462758535.

The spelling of 287425799 in words is "two hundred eighty-seven million, four hundred twenty-five thousand, seven hundred ninety-nine".