86987485667 has 4 divisors (see below), whose sum is σ = 87008049456. Its totient is φ = 86966921880.

The previous prime is 86987485619. The next prime is 86987485681. The reversal of 86987485667 is 76658478968.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86987485667 - 2²⁸ = 86719050211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86987485594 and 86987485603.

It is not an unprimeable number, because it can be changed into a prime (86987488667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10275548 + ... + 10284009.

It is an arithmetic number, because the mean of its divisors is an integer number (21752012364).

Almost surely, 2^86987485667 is an apocalyptic number.

86987485667 is a deficient number, since it is larger than the sum of its proper divisors (20563789).

86987485667 is a wasteful number, since it uses less digits than its factorization.

86987485667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20563788.

The product of its digits is 975421440, while the sum is 74.

The spelling of 86987485667 in words is "eighty-six billion, nine hundred eighty-seven million, four hundred eighty-five thousand, six hundred sixty-seven".