2217770487 has 12 divisors (see below), whose sum is σ = 3204295224. Its totient is φ = 1478121840.

The previous prime is 2217770369. The next prime is 2217770501. The reversal of 2217770487 is 7840777122.

It is not a de Polignac number, because 2217770487 - 2¹⁵ = 2217737719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217770987) 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 in 11 ways as a sum of consecutive naturals, for example, 5548 + ... + 66830.

It is an arithmetic number, because the mean of its divisors is an integer number (267024602).

Almost surely, 2^2217770487 is an apocalyptic number.

2217770487 is a deficient number, since it is larger than the sum of its proper divisors (986524737).

2217770487 is a wasteful number, since it uses less digits than its factorization.

2217770487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65310 (or 65307 counting only the distinct ones).

The product of its (nonzero) digits is 307328, while the sum is 45.

The square root of 2217770487 is about 47093.2106253120. The cubic root of 2217770487 is about 1304.0839001479.

The spelling of 2217770487 in words is "two billion, two hundred seventeen million, seven hundred seventy thousand, four hundred eighty-seven".