4287630397 has 2 divisors, whose sum is σ = 4287630398. Its totient is φ = 4287630396.

The previous prime is 4287630379. The next prime is 4287630427. The reversal of 4287630397 is 7930367824.

Together with previous prime (4287630379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2332310436 + 1955319961 = 48294^2 + 44219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4287630397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4287630397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4287630377) 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, 2143815198 + 2143815199.

It is an arithmetic number, because the mean of its divisors is an integer number (2143815199).

Almost surely, 2^4287630397 is an apocalyptic number.

It is an amenable number.

4287630397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4287630397 is an equidigital number, since it uses as much as digits as its factorization.

4287630397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The square root of 4287630397 is about 65479.9999770922. Note that the first 4 decimals coincide. The cubic root of 4287630397 is about 1624.5725609651.

The spelling of 4287630397 in words is "four billion, two hundred eighty-seven million, six hundred thirty thousand, three hundred ninety-seven".