5660728987 has 2 divisors, whose sum is σ = 5660728988. Its totient is φ = 5660728986.

The previous prime is 5660728951. The next prime is 5660728999. The reversal of 5660728987 is 7898270665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5660728987 - 2¹⁵ = 5660696219 is a prime.

It is not a weakly prime, because it can be changed into another prime (5660728687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830364493 + 2830364494.

It is an arithmetic number, because the mean of its divisors is an integer number (2830364494).

Almost surely, 2^5660728987 is an apocalyptic number.

5660728987 is a deficient number, since it is larger than the sum of its proper divisors (1).

5660728987 is an equidigital number, since it uses as much as digits as its factorization.

5660728987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10160640, while the sum is 58.

The square root of 5660728987 is about 75237.8162030239. The cubic root of 5660728987 is about 1782.2041653757.

The spelling of 5660728987 in words is "five billion, six hundred sixty million, seven hundred twenty-eight thousand, nine hundred eighty-seven".