6887563217 has 8 divisors (see below), whose sum is σ = 6999187776. Its totient is φ = 6776198352.

The previous prime is 6887563183. The next prime is 6887563247. The reversal of 6887563217 is 7123657886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6887563217 - 2²⁶ = 6820454353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6887563247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11093 + ... + 117890.

It is an arithmetic number, because the mean of its divisors is an integer number (874898472).

Almost surely, 2^6887563217 is an apocalyptic number.

6887563217 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

6887563217 is a deficient number, since it is larger than the sum of its proper divisors (111624559).

6887563217 is a wasteful number, since it uses less digits than its factorization.

6887563217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129847.

The product of its digits is 3386880, while the sum is 53.

The square root of 6887563217 is about 82991.3442293833. The cubic root of 6887563217 is about 1902.6337635716.

The spelling of 6887563217 in words is "six billion, eight hundred eighty-seven million, five hundred sixty-three thousand, two hundred seventeen".