4887687709 has 2 divisors, whose sum is σ = 4887687710. Its totient is φ = 4887687708.

The previous prime is 4887687691. The next prime is 4887687793. The reversal of 4887687709 is 9077867884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4465179684 + 422508025 = 66822^2 + 20555^2 .

It is a cyclic number.

It is not a de Polignac number, because 4887687709 - 2¹¹ = 4887685661 is a prime.

It is a super-2 number, since 2×4887687709² = 47778982281419337362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4887627709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2443843854 + 2443843855.

It is an arithmetic number, because the mean of its divisors is an integer number (2443843855).

Almost surely, 2^4887687709 is an apocalyptic number.

It is an amenable number.

4887687709 is a deficient number, since it is larger than the sum of its proper divisors (1).

4887687709 is an equidigital number, since it uses as much as digits as its factorization.

4887687709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37933056, while the sum is 64.

The square root of 4887687709 is about 69911.9997496853. Note that the first 3 decimals coincide. The cubic root of 4887687709 is about 1697.0754456310.

The spelling of 4887687709 in words is "four billion, eight hundred eighty-seven million, six hundred eighty-seven thousand, seven hundred nine".