8642560487 has 16 divisors (see below), whose sum is σ = 10171217952. Its totient is φ = 7255173120.

The previous prime is 8642560441. The next prime is 8642560501. The reversal of 8642560487 is 7840652468.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8642560487 - 2¹⁰ = 8642559463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8642560427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426098 + ... + 445919.

It is an arithmetic number, because the mean of its divisors is an integer number (635701122).

Almost surely, 2^8642560487 is an apocalyptic number.

8642560487 is a deficient number, since it is larger than the sum of its proper divisors (1528657465).

8642560487 is a wasteful number, since it uses less digits than its factorization.

8642560487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872098.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The square root of 8642560487 is about 92965.3725157921. The cubic root of 8642560487 is about 2052.1738183611.

The spelling of 8642560487 in words is "eight billion, six hundred forty-two million, five hundred sixty thousand, four hundred eighty-seven".